Home / 12,339.47-18,502.45-4,440.89

Finding the Fourth Proportional to 12,339.47, 18,502.45 and 4,440.89

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Solution

The fourth proportional to 12,339.47, 18,502.45 and 4,440.89 is: 6,658.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,339.47 : 18,502.45 = 4,440.89 : x
  2. Step 2: Convert to fraction form
    12,339.47/18,502.45 = 4,440.89/x
  3. Step 3: Cross multiply
    12,339.47x = 18,502.45 × 4,440.89
  4. Step 4: Simplify right side
    12,339.47x = 82,167,345.18
  5. Step 5: Solve for x
    x = 82,167,345.18/12,339.47
  6. Step 6: Final answer
    x = 6,658.90

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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.