Home / 13,917.90-20,871.66-5,595.11

Finding the Fourth Proportional to 13,917.90, 20,871.66 and 5,595.11

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Solution

The fourth proportional to 13,917.90, 20,871.66 and 5,595.11 is: 8,390.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.90 : 20,871.66 = 5,595.11 : x
  2. Step 2: Convert to fraction form
    13,917.90/20,871.66 = 5,595.11/x
  3. Step 3: Cross multiply
    13,917.90x = 20,871.66 × 5,595.11
  4. Step 4: Simplify right side
    13,917.90x = 116,779,306.74
  5. Step 5: Solve for x
    x = 116,779,306.74/13,917.90
  6. Step 6: Final answer
    x = 8,390.59

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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.