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Finding the Fourth Proportional to 12,472.48, 17,210.16 and 8,000.32

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Solution

The fourth proportional to 12,472.48, 17,210.16 and 8,000.32 is: 11,039.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472.48 : 17,210.16 = 8,000.32 : x
  2. Step 2: Convert to fraction form
    12,472.48/17,210.16 = 8,000.32/x
  3. Step 3: Cross multiply
    12,472.48x = 17,210.16 × 8,000.32
  4. Step 4: Simplify right side
    12,472.48x = 137,686,787.25
  5. Step 5: Solve for x
    x = 137,686,787.25/12,472.48
  6. Step 6: Final answer
    x = 11,039.25

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Similar ratio
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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.