Home / 13,572.02-20,351.15-4,805.70

Finding the Fourth Proportional to 13,572.02, 20,351.15 and 4,805.70

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Solution

The fourth proportional to 13,572.02, 20,351.15 and 4,805.70 is: 7,206.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.02 : 20,351.15 = 4,805.70 : x
  2. Step 2: Convert to fraction form
    13,572.02/20,351.15 = 4,805.70/x
  3. Step 3: Cross multiply
    13,572.02x = 20,351.15 × 4,805.70
  4. Step 4: Simplify right side
    13,572.02x = 97,801,521.56
  5. Step 5: Solve for x
    x = 97,801,521.56/13,572.02
  6. Step 6: Final answer
    x = 7,206.11

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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.