Home / 13,666.46-20,486.72-5,343.71

Finding the Fourth Proportional to 13,666.46, 20,486.72 and 5,343.71

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Solution

The fourth proportional to 13,666.46, 20,486.72 and 5,343.71 is: 8,010.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,666.46 : 20,486.72 = 5,343.71 : x
  2. Step 2: Convert to fraction form
    13,666.46/20,486.72 = 5,343.71/x
  3. Step 3: Cross multiply
    13,666.46x = 20,486.72 × 5,343.71
  4. Step 4: Simplify right side
    13,666.46x = 109,475,001.46
  5. Step 5: Solve for x
    x = 109,475,001.46/13,666.46
  6. Step 6: Final answer
    x = 8,010.49

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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.