Home / 15,489.20-23,258.10-8,928.20

Finding the Fourth Proportional to 15,489.20, 23,258.10 and 8,928.20

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Solution

The fourth proportional to 15,489.20, 23,258.10 and 8,928.20 is: 13,406.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,489.20 : 23,258.10 = 8,928.20 : x
  2. Step 2: Convert to fraction form
    15,489.20/23,258.10 = 8,928.20/x
  3. Step 3: Cross multiply
    15,489.20x = 23,258.10 × 8,928.20
  4. Step 4: Simplify right side
    15,489.20x = 207,652,968.42
  5. Step 5: Solve for x
    x = 207,652,968.42/15,489.20
  6. Step 6: Final answer
    x = 13,406.31

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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.