Home / 15,512.80-23,269.20-5,125.60

Finding the Fourth Proportional to 15,512.80, 23,269.20 and 5,125.60

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Solution

The fourth proportional to 15,512.80, 23,269.20 and 5,125.60 is: 7,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,512.80 : 23,269.20 = 5,125.60 : x
  2. Step 2: Convert to fraction form
    15,512.80/23,269.20 = 5,125.60/x
  3. Step 3: Cross multiply
    15,512.80x = 23,269.20 × 5,125.60
  4. Step 4: Simplify right side
    15,512.80x = 119,268,611.52
  5. Step 5: Solve for x
    x = 119,268,611.52/15,512.80
  6. Step 6: Final answer
    x = 7,688.40

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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.