Home / 13,191.48-19,787.22-6,616.13

Finding the Fourth Proportional to 13,191.48, 19,787.22 and 6,616.13

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Solution

The fourth proportional to 13,191.48, 19,787.22 and 6,616.13 is: 9,924.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191.48 : 19,787.22 = 6,616.13 : x
  2. Step 2: Convert to fraction form
    13,191.48/19,787.22 = 6,616.13/x
  3. Step 3: Cross multiply
    13,191.48x = 19,787.22 × 6,616.13
  4. Step 4: Simplify right side
    13,191.48x = 130,914,860.14
  5. Step 5: Solve for x
    x = 130,914,860.14/13,191.48
  6. Step 6: Final answer
    x = 9,924.20

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Double scale
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Similar ratio
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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.