Home / 13,695.52-20,535.60-9,318.88

Finding the Fourth Proportional to 13,695.52, 20,535.60 and 9,318.88

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Solution

The fourth proportional to 13,695.52, 20,535.60 and 9,318.88 is: 13,973.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,695.52 : 20,535.60 = 9,318.88 : x
  2. Step 2: Convert to fraction form
    13,695.52/20,535.60 = 9,318.88/x
  3. Step 3: Cross multiply
    13,695.52x = 20,535.60 × 9,318.88
  4. Step 4: Simplify right side
    13,695.52x = 191,368,792.13
  5. Step 5: Solve for x
    x = 191,368,792.13/13,695.52
  6. Step 6: Final answer
    x = 13,973.09

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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.