Home / 18,211.50-25,129.98-10,657.44

Finding the Fourth Proportional to 18,211.50, 25,129.98 and 10,657.44

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Solution

The fourth proportional to 18,211.50, 25,129.98 and 10,657.44 is: 14,706.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.50 : 25,129.98 = 10,657.44 : x
  2. Step 2: Convert to fraction form
    18,211.50/25,129.98 = 10,657.44/x
  3. Step 3: Cross multiply
    18,211.50x = 25,129.98 × 10,657.44
  4. Step 4: Simplify right side
    18,211.50x = 267,821,254.05
  5. Step 5: Solve for x
    x = 267,821,254.05/18,211.50
  6. Step 6: Final answer
    x = 14,706.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.