Home / 14,283.20-19,710.72-7,995.20

Finding the Fourth Proportional to 14,283.20, 19,710.72 and 7,995.20

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Solution

The fourth proportional to 14,283.20, 19,710.72 and 7,995.20 is: 11,033.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,283.20 : 19,710.72 = 7,995.20 : x
  2. Step 2: Convert to fraction form
    14,283.20/19,710.72 = 7,995.20/x
  3. Step 3: Cross multiply
    14,283.20x = 19,710.72 × 7,995.20
  4. Step 4: Simplify right side
    14,283.20x = 157,591,148.54
  5. Step 5: Solve for x
    x = 157,591,148.54/14,283.20
  6. Step 6: Final answer
    x = 11,033.32

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Half scale
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Double scale
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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.