Home / 8,430.19-12,645.33-3,432.65

Finding the Fourth Proportional to 8,430.19, 12,645.33 and 3,432.65

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Solution

The fourth proportional to 8,430.19, 12,645.33 and 3,432.65 is: 5,149.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430.19 : 12,645.33 = 3,432.65 : x
  2. Step 2: Convert to fraction form
    8,430.19/12,645.33 = 3,432.65/x
  3. Step 3: Cross multiply
    8,430.19x = 12,645.33 × 3,432.65
  4. Step 4: Simplify right side
    8,430.19x = 43,407,023.64
  5. Step 5: Solve for x
    x = 43,407,023.64/8,430.19
  6. Step 6: Final answer
    x = 5,149.00

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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.