Home / 15,144.84-22,688.10-12,374.64

Finding the Fourth Proportional to 15,144.84, 22,688.10 and 12,374.64

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Solution

The fourth proportional to 15,144.84, 22,688.10 and 12,374.64 is: 18,538.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,144.84 : 22,688.10 = 12,374.64 : x
  2. Step 2: Convert to fraction form
    15,144.84/22,688.10 = 12,374.64/x
  3. Step 3: Cross multiply
    15,144.84x = 22,688.10 × 12,374.64
  4. Step 4: Simplify right side
    15,144.84x = 280,757,069.78
  5. Step 5: Solve for x
    x = 280,757,069.78/15,144.84
  6. Step 6: Final answer
    x = 18,538.13

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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.