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Finding the Fourth Proportional to 15,154.95, 22,737.90 and 7,762.89

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Solution

The fourth proportional to 15,154.95, 22,737.90 and 7,762.89 is: 11,647.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,154.95 : 22,737.90 = 7,762.89 : x
  2. Step 2: Convert to fraction form
    15,154.95/22,737.90 = 7,762.89/x
  3. Step 3: Cross multiply
    15,154.95x = 22,737.90 × 7,762.89
  4. Step 4: Simplify right side
    15,154.95x = 176,511,816.53
  5. Step 5: Solve for x
    x = 176,511,816.53/15,154.95
  6. Step 6: Final answer
    x = 11,647.14

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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.