Home / 10,657.20-15,988.56-4,083.60

Finding the Fourth Proportional to 10,657.20, 15,988.56 and 4,083.60

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Solution

The fourth proportional to 10,657.20, 15,988.56 and 4,083.60 is: 6,126.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,657.20 : 15,988.56 = 4,083.60 : x
  2. Step 2: Convert to fraction form
    10,657.20/15,988.56 = 4,083.60/x
  3. Step 3: Cross multiply
    10,657.20x = 15,988.56 × 4,083.60
  4. Step 4: Simplify right side
    10,657.20x = 65,290,883.62
  5. Step 5: Solve for x
    x = 65,290,883.62/10,657.20
  6. Step 6: Final answer
    x = 6,126.46

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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.