Home / 13,965.28-19,280.58-9,714.76

Finding the Fourth Proportional to 13,965.28, 19,280.58 and 9,714.76

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Solution

The fourth proportional to 13,965.28, 19,280.58 and 9,714.76 is: 13,412.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,965.28 : 19,280.58 = 9,714.76 : x
  2. Step 2: Convert to fraction form
    13,965.28/19,280.58 = 9,714.76/x
  3. Step 3: Cross multiply
    13,965.28x = 19,280.58 × 9,714.76
  4. Step 4: Simplify right side
    13,965.28x = 187,306,207.36
  5. Step 5: Solve for x
    x = 187,306,207.36/13,965.28
  6. Step 6: Final answer
    x = 13,412.28

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Half scale
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Double scale
Find fourth proportional to 13,966.28, 19,281.96 and 9,715.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.