Home / 10,123.09-15,184.62-5,436.65

Finding the Fourth Proportional to 10,123.09, 15,184.62 and 5,436.65

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Solution

The fourth proportional to 10,123.09, 15,184.62 and 5,436.65 is: 8,154.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,123.09 : 15,184.62 = 5,436.65 : x
  2. Step 2: Convert to fraction form
    10,123.09/15,184.62 = 5,436.65/x
  3. Step 3: Cross multiply
    10,123.09x = 15,184.62 × 5,436.65
  4. Step 4: Simplify right side
    10,123.09x = 82,553,408.79
  5. Step 5: Solve for x
    x = 82,553,408.79/10,123.09
  6. Step 6: Final answer
    x = 8,154.96

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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.