Home / 15,631.98-23,451.32-8,971.55

Finding the Fourth Proportional to 15,631.98, 23,451.32 and 8,971.55

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Solution

The fourth proportional to 15,631.98, 23,451.32 and 8,971.55 is: 13,459.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,631.98 : 23,451.32 = 8,971.55 : x
  2. Step 2: Convert to fraction form
    15,631.98/23,451.32 = 8,971.55/x
  3. Step 3: Cross multiply
    15,631.98x = 23,451.32 × 8,971.55
  4. Step 4: Simplify right side
    15,631.98x = 210,394,689.95
  5. Step 5: Solve for x
    x = 210,394,689.95/15,631.98
  6. Step 6: Final answer
    x = 13,459.25

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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.