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Finding the Fourth Proportional to 15,252.76, 21,052.32 and 9,938.32

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Solution

The fourth proportional to 15,252.76, 21,052.32 and 9,938.32 is: 13,717.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,252.76 : 21,052.32 = 9,938.32 : x
  2. Step 2: Convert to fraction form
    15,252.76/21,052.32 = 9,938.32/x
  3. Step 3: Cross multiply
    15,252.76x = 21,052.32 × 9,938.32
  4. Step 4: Simplify right side
    15,252.76x = 209,224,692.90
  5. Step 5: Solve for x
    x = 209,224,692.90/15,252.76
  6. Step 6: Final answer
    x = 13,717.17

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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.