Home / 17,587.20-26,358.40-7,187.20

Finding the Fourth Proportional to 17,587.20, 26,358.40 and 7,187.20

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Solution

The fourth proportional to 17,587.20, 26,358.40 and 7,187.20 is: 10,771.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,587.20 : 26,358.40 = 7,187.20 : x
  2. Step 2: Convert to fraction form
    17,587.20/26,358.40 = 7,187.20/x
  3. Step 3: Cross multiply
    17,587.20x = 26,358.40 × 7,187.20
  4. Step 4: Simplify right side
    17,587.20x = 189,443,092.48
  5. Step 5: Solve for x
    x = 189,443,092.48/17,587.20
  6. Step 6: Final answer
    x = 10,771.65

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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.