Home / 15,489.90-23,209.20-8,904.60

Finding the Fourth Proportional to 15,489.90, 23,209.20 and 8,904.60

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Solution

The fourth proportional to 15,489.90, 23,209.20 and 8,904.60 is: 13,342.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,489.90 : 23,209.20 = 8,904.60 : x
  2. Step 2: Convert to fraction form
    15,489.90/23,209.20 = 8,904.60/x
  3. Step 3: Cross multiply
    15,489.90x = 23,209.20 × 8,904.60
  4. Step 4: Simplify right side
    15,489.90x = 206,668,642.32
  5. Step 5: Solve for x
    x = 206,668,642.32/15,489.90
  6. Step 6: Final answer
    x = 13,342.15

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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.