Home / 10,342.14-14,264.34-7,160.76

Finding the Fourth Proportional to 10,342.14, 14,264.34 and 7,160.76

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Solution

The fourth proportional to 10,342.14, 14,264.34 and 7,160.76 is: 9,876.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,342.14 : 14,264.34 = 7,160.76 : x
  2. Step 2: Convert to fraction form
    10,342.14/14,264.34 = 7,160.76/x
  3. Step 3: Cross multiply
    10,342.14x = 14,264.34 × 7,160.76
  4. Step 4: Simplify right side
    10,342.14x = 102,143,515.30
  5. Step 5: Solve for x
    x = 102,143,515.30/10,342.14
  6. Step 6: Final answer
    x = 9,876.44

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Half scale
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Double scale
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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.