Home / 13,592.28-20,355.58-7,731.12

Finding the Fourth Proportional to 13,592.28, 20,355.58 and 7,731.12

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Solution

The fourth proportional to 13,592.28, 20,355.58 and 7,731.12 is: 11,578.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,592.28 : 20,355.58 = 7,731.12 : x
  2. Step 2: Convert to fraction form
    13,592.28/20,355.58 = 7,731.12/x
  3. Step 3: Cross multiply
    13,592.28x = 20,355.58 × 7,731.12
  4. Step 4: Simplify right side
    13,592.28x = 157,371,431.65
  5. Step 5: Solve for x
    x = 157,371,431.65/13,592.28
  6. Step 6: Final answer
    x = 11,578.00

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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.