Home / 10,655.52-14,718.96-9,661.92

Finding the Fourth Proportional to 10,655.52, 14,718.96 and 9,661.92

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Solution

The fourth proportional to 10,655.52, 14,718.96 and 9,661.92 is: 13,346.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,655.52 : 14,718.96 = 9,661.92 : x
  2. Step 2: Convert to fraction form
    10,655.52/14,718.96 = 9,661.92/x
  3. Step 3: Cross multiply
    10,655.52x = 14,718.96 × 9,661.92
  4. Step 4: Simplify right side
    10,655.52x = 142,213,414.00
  5. Step 5: Solve for x
    x = 142,213,414.00/10,655.52
  6. Step 6: Final answer
    x = 13,346.45

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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.