Home / 12,432.42-18,648.60-8,751.06

Finding the Fourth Proportional to 12,432.42, 18,648.60 and 8,751.06

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Solution

The fourth proportional to 12,432.42, 18,648.60 and 8,751.06 is: 13,126.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,432.42 : 18,648.60 = 8,751.06 : x
  2. Step 2: Convert to fraction form
    12,432.42/18,648.60 = 8,751.06/x
  3. Step 3: Cross multiply
    12,432.42x = 18,648.60 × 8,751.06
  4. Step 4: Simplify right side
    12,432.42x = 163,195,017.52
  5. Step 5: Solve for x
    x = 163,195,017.52/12,432.42
  6. Step 6: Final answer
    x = 13,126.57

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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.