Home / 12,123.09-18,184.65-4,332.51

Finding the Fourth Proportional to 12,123.09, 18,184.65 and 4,332.51

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Solution

The fourth proportional to 12,123.09, 18,184.65 and 4,332.51 is: 6,498.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,123.09 : 18,184.65 = 4,332.51 : x
  2. Step 2: Convert to fraction form
    12,123.09/18,184.65 = 4,332.51/x
  3. Step 3: Cross multiply
    12,123.09x = 18,184.65 × 4,332.51
  4. Step 4: Simplify right side
    12,123.09x = 78,785,177.97
  5. Step 5: Solve for x
    x = 78,785,177.97/12,123.09
  6. Step 6: Final answer
    x = 6,498.77

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Similar ratio
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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.