Home / 15,291.18-22,947.10-5,430.65

Finding the Fourth Proportional to 15,291.18, 22,947.10 and 5,430.65

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Solution

The fourth proportional to 15,291.18, 22,947.10 and 5,430.65 is: 8,149.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,291.18 : 22,947.10 = 5,430.65 : x
  2. Step 2: Convert to fraction form
    15,291.18/22,947.10 = 5,430.65/x
  3. Step 3: Cross multiply
    15,291.18x = 22,947.10 × 5,430.65
  4. Step 4: Simplify right side
    15,291.18x = 124,617,540.30
  5. Step 5: Solve for x
    x = 124,617,540.30/15,291.18
  6. Step 6: Final answer
    x = 8,149.64

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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.