Home / 10,963.66-15,128.68-6,487.60

Finding the Fourth Proportional to 10,963.66, 15,128.68 and 6,487.60

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Solution

The fourth proportional to 10,963.66, 15,128.68 and 6,487.60 is: 8,952.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,963.66 : 15,128.68 = 6,487.60 : x
  2. Step 2: Convert to fraction form
    10,963.66/15,128.68 = 6,487.60/x
  3. Step 3: Cross multiply
    10,963.66x = 15,128.68 × 6,487.60
  4. Step 4: Simplify right side
    10,963.66x = 98,148,716.29
  5. Step 5: Solve for x
    x = 98,148,716.29/10,963.66
  6. Step 6: Final answer
    x = 8,952.19

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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.