Home / 18,686.18-28,029.22-7,590.27

Finding the Fourth Proportional to 18,686.18, 28,029.22 and 7,590.27

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Solution

The fourth proportional to 18,686.18, 28,029.22 and 7,590.27 is: 11,385.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686.18 : 28,029.22 = 7,590.27 : x
  2. Step 2: Convert to fraction form
    18,686.18/28,029.22 = 7,590.27/x
  3. Step 3: Cross multiply
    18,686.18x = 28,029.22 × 7,590.27
  4. Step 4: Simplify right side
    18,686.18x = 212,749,347.69
  5. Step 5: Solve for x
    x = 212,749,347.69/18,686.18
  6. Step 6: Final answer
    x = 11,385.38

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Similar ratio
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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.