Home / 15,174.60-20,937.72-9,205.08

Finding the Fourth Proportional to 15,174.60, 20,937.72 and 9,205.08

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Solution

The fourth proportional to 15,174.60, 20,937.72 and 9,205.08 is: 12,701.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,174.60 : 20,937.72 = 9,205.08 : x
  2. Step 2: Convert to fraction form
    15,174.60/20,937.72 = 9,205.08/x
  3. Step 3: Cross multiply
    15,174.60x = 20,937.72 × 9,205.08
  4. Step 4: Simplify right side
    15,174.60x = 192,733,387.62
  5. Step 5: Solve for x
    x = 192,733,387.62/15,174.60
  6. Step 6: Final answer
    x = 12,701.05

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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.