Home / 12,472.90-18,711.81-4,575.49

Finding the Fourth Proportional to 12,472.90, 18,711.81 and 4,575.49

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Solution

The fourth proportional to 12,472.90, 18,711.81 and 4,575.49 is: 6,864.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472.90 : 18,711.81 = 4,575.49 : x
  2. Step 2: Convert to fraction form
    12,472.90/18,711.81 = 4,575.49/x
  3. Step 3: Cross multiply
    12,472.90x = 18,711.81 × 4,575.49
  4. Step 4: Simplify right side
    12,472.90x = 85,615,664.20
  5. Step 5: Solve for x
    x = 85,615,664.20/12,472.90
  6. Step 6: Final answer
    x = 6,864.14

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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.