Home / 12,087.52-18,127.68-4,294.56

Finding the Fourth Proportional to 12,087.52, 18,127.68 and 4,294.56

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Solution

The fourth proportional to 12,087.52, 18,127.68 and 4,294.56 is: 6,440.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087.52 : 18,127.68 = 4,294.56 : x
  2. Step 2: Convert to fraction form
    12,087.52/18,127.68 = 4,294.56/x
  3. Step 3: Cross multiply
    12,087.52x = 18,127.68 × 4,294.56
  4. Step 4: Simplify right side
    12,087.52x = 77,850,409.42
  5. Step 5: Solve for x
    x = 77,850,409.42/12,087.52
  6. Step 6: Final answer
    x = 6,440.56

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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.