Home / 15,608.84-21,535.86-9,318.92

Finding the Fourth Proportional to 15,608.84, 21,535.86 and 9,318.92

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Solution

The fourth proportional to 15,608.84, 21,535.86 and 9,318.92 is: 12,857.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,608.84 : 21,535.86 = 9,318.92 : x
  2. Step 2: Convert to fraction form
    15,608.84/21,535.86 = 9,318.92/x
  3. Step 3: Cross multiply
    15,608.84x = 21,535.86 × 9,318.92
  4. Step 4: Simplify right side
    15,608.84x = 200,690,956.47
  5. Step 5: Solve for x
    x = 200,690,956.47/15,608.84
  6. Step 6: Final answer
    x = 12,857.52

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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.