Home / 9,850.90-13,589.95-6,489.40

Finding the Fourth Proportional to 9,850.90, 13,589.95 and 6,489.40

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Solution

The fourth proportional to 9,850.90, 13,589.95 and 6,489.40 is: 8,952.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,850.90 : 13,589.95 = 6,489.40 : x
  2. Step 2: Convert to fraction form
    9,850.90/13,589.95 = 6,489.40/x
  3. Step 3: Cross multiply
    9,850.90x = 13,589.95 × 6,489.40
  4. Step 4: Simplify right side
    9,850.90x = 88,190,521.13
  5. Step 5: Solve for x
    x = 88,190,521.13/9,850.90
  6. Step 6: Final answer
    x = 8,952.54

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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.