Home / 15,727.32-21,704.60-9,013.76

Finding the Fourth Proportional to 15,727.32, 21,704.60 and 9,013.76

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Solution

The fourth proportional to 15,727.32, 21,704.60 and 9,013.76 is: 12,439.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,727.32 : 21,704.60 = 9,013.76 : x
  2. Step 2: Convert to fraction form
    15,727.32/21,704.60 = 9,013.76/x
  3. Step 3: Cross multiply
    15,727.32x = 21,704.60 × 9,013.76
  4. Step 4: Simplify right side
    15,727.32x = 195,640,055.30
  5. Step 5: Solve for x
    x = 195,640,055.30/15,727.32
  6. Step 6: Final answer
    x = 12,439.50

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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.