Home / 13,379.32-18,463.12-7,329.52

Finding the Fourth Proportional to 13,379.32, 18,463.12 and 7,329.52

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Solution

The fourth proportional to 13,379.32, 18,463.12 and 7,329.52 is: 10,114.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,379.32 : 18,463.12 = 7,329.52 : x
  2. Step 2: Convert to fraction form
    13,379.32/18,463.12 = 7,329.52/x
  3. Step 3: Cross multiply
    13,379.32x = 18,463.12 × 7,329.52
  4. Step 4: Simplify right side
    13,379.32x = 135,325,807.30
  5. Step 5: Solve for x
    x = 135,325,807.30/13,379.32
  6. Step 6: Final answer
    x = 10,114.55

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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.