Home / 7,421.34-11,132.15-3,470.42

Finding the Fourth Proportional to 7,421.34, 11,132.15 and 3,470.42

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Solution

The fourth proportional to 7,421.34, 11,132.15 and 3,470.42 is: 5,205.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.34 : 11,132.15 = 3,470.42 : x
  2. Step 2: Convert to fraction form
    7,421.34/11,132.15 = 3,470.42/x
  3. Step 3: Cross multiply
    7,421.34x = 11,132.15 × 3,470.42
  4. Step 4: Simplify right side
    7,421.34x = 38,633,162.99
  5. Step 5: Solve for x
    x = 38,633,162.99/7,421.34
  6. Step 6: Final answer
    x = 5,205.69

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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.