Home / 15,751.90-23,631.12-4,657.72

Finding the Fourth Proportional to 15,751.90, 23,631.12 and 4,657.72

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Solution

The fourth proportional to 15,751.90, 23,631.12 and 4,657.72 is: 6,987.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,751.90 : 23,631.12 = 4,657.72 : x
  2. Step 2: Convert to fraction form
    15,751.90/23,631.12 = 4,657.72/x
  3. Step 3: Cross multiply
    15,751.90x = 23,631.12 × 4,657.72
  4. Step 4: Simplify right side
    15,751.90x = 110,067,140.25
  5. Step 5: Solve for x
    x = 110,067,140.25/15,751.90
  6. Step 6: Final answer
    x = 6,987.55

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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.