Home / 12,660.08-18,988.08-4,339.76

Finding the Fourth Proportional to 12,660.08, 18,988.08 and 4,339.76

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Solution

The fourth proportional to 12,660.08, 18,988.08 and 4,339.76 is: 6,508.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,660.08 : 18,988.08 = 4,339.76 : x
  2. Step 2: Convert to fraction form
    12,660.08/18,988.08 = 4,339.76/x
  3. Step 3: Cross multiply
    12,660.08x = 18,988.08 × 4,339.76
  4. Step 4: Simplify right side
    12,660.08x = 82,403,710.06
  5. Step 5: Solve for x
    x = 82,403,710.06/12,660.08
  6. Step 6: Final answer
    x = 6,508.94

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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.