Home / 12,339.57-18,549.45-9,901.08

Finding the Fourth Proportional to 12,339.57, 18,549.45 and 9,901.08

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Solution

The fourth proportional to 12,339.57, 18,549.45 and 9,901.08 is: 14,883.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,339.57 : 18,549.45 = 9,901.08 : x
  2. Step 2: Convert to fraction form
    12,339.57/18,549.45 = 9,901.08/x
  3. Step 3: Cross multiply
    12,339.57x = 18,549.45 × 9,901.08
  4. Step 4: Simplify right side
    12,339.57x = 183,659,588.41
  5. Step 5: Solve for x
    x = 183,659,588.41/12,339.57
  6. Step 6: Final answer
    x = 14,883.79

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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.