Home / 10,883.01-15,017.85-6,405.90

Finding the Fourth Proportional to 10,883.01, 15,017.85 and 6,405.90

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Solution

The fourth proportional to 10,883.01, 15,017.85 and 6,405.90 is: 8,839.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,883.01 : 15,017.85 = 6,405.90 : x
  2. Step 2: Convert to fraction form
    10,883.01/15,017.85 = 6,405.90/x
  3. Step 3: Cross multiply
    10,883.01x = 15,017.85 × 6,405.90
  4. Step 4: Simplify right side
    10,883.01x = 96,202,845.32
  5. Step 5: Solve for x
    x = 96,202,845.32/10,883.01
  6. Step 6: Final answer
    x = 8,839.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.