Home / 10,356.72-15,538.36-6,663.12

Finding the Fourth Proportional to 10,356.72, 15,538.36 and 6,663.12

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Solution

The fourth proportional to 10,356.72, 15,538.36 and 6,663.12 is: 9,996.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,356.72 : 15,538.36 = 6,663.12 : x
  2. Step 2: Convert to fraction form
    10,356.72/15,538.36 = 6,663.12/x
  3. Step 3: Cross multiply
    10,356.72x = 15,538.36 × 6,663.12
  4. Step 4: Simplify right side
    10,356.72x = 103,533,957.28
  5. Step 5: Solve for x
    x = 103,533,957.28/10,356.72
  6. Step 6: Final answer
    x = 9,996.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.