Home / 10,512.40-15,736.20-6,116.80

Finding the Fourth Proportional to 10,512.40, 15,736.20 and 6,116.80

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Solution

The fourth proportional to 10,512.40, 15,736.20 and 6,116.80 is: 9,156.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,512.40 : 15,736.20 = 6,116.80 : x
  2. Step 2: Convert to fraction form
    10,512.40/15,736.20 = 6,116.80/x
  3. Step 3: Cross multiply
    10,512.40x = 15,736.20 × 6,116.80
  4. Step 4: Simplify right side
    10,512.40x = 96,255,188.16
  5. Step 5: Solve for x
    x = 96,255,188.16/10,512.40
  6. Step 6: Final answer
    x = 9,156.35

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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.