Home / 13,572.10-20,328.07-10,428.97

Finding the Fourth Proportional to 13,572.10, 20,328.07 and 10,428.97

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Solution

The fourth proportional to 13,572.10, 20,328.07 and 10,428.97 is: 15,620.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.10 : 20,328.07 = 10,428.97 : x
  2. Step 2: Convert to fraction form
    13,572.10/20,328.07 = 10,428.97/x
  3. Step 3: Cross multiply
    13,572.10x = 20,328.07 × 10,428.97
  4. Step 4: Simplify right side
    13,572.10x = 212,000,704.48
  5. Step 5: Solve for x
    x = 212,000,704.48/13,572.10
  6. Step 6: Final answer
    x = 15,620.34

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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.