Home / 13,423.92-18,526.71-8,118.74

Finding the Fourth Proportional to 13,423.92, 18,526.71 and 8,118.74

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Solution

The fourth proportional to 13,423.92, 18,526.71 and 8,118.74 is: 11,204.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423.92 : 18,526.71 = 8,118.74 : x
  2. Step 2: Convert to fraction form
    13,423.92/18,526.71 = 8,118.74/x
  3. Step 3: Cross multiply
    13,423.92x = 18,526.71 × 8,118.74
  4. Step 4: Simplify right side
    13,423.92x = 150,413,448.91
  5. Step 5: Solve for x
    x = 150,413,448.91/13,423.92
  6. Step 6: Final answer
    x = 11,204.88

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.