Home / 13,326.38-20,002.53-6,405.74

Finding the Fourth Proportional to 13,326.38, 20,002.53 and 6,405.74

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Solution

The fourth proportional to 13,326.38, 20,002.53 and 6,405.74 is: 9,614.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.38 : 20,002.53 = 6,405.74 : x
  2. Step 2: Convert to fraction form
    13,326.38/20,002.53 = 6,405.74/x
  3. Step 3: Cross multiply
    13,326.38x = 20,002.53 × 6,405.74
  4. Step 4: Simplify right side
    13,326.38x = 128,131,006.52
  5. Step 5: Solve for x
    x = 128,131,006.52/13,326.38
  6. Step 6: Final answer
    x = 9,614.84

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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.