Home / 9,135.20-13,702.80-8,041.70

Finding the Fourth Proportional to 9,135.20, 13,702.80 and 8,041.70

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Solution

The fourth proportional to 9,135.20, 13,702.80 and 8,041.70 is: 12,062.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,135.20 : 13,702.80 = 8,041.70 : x
  2. Step 2: Convert to fraction form
    9,135.20/13,702.80 = 8,041.70/x
  3. Step 3: Cross multiply
    9,135.20x = 13,702.80 × 8,041.70
  4. Step 4: Simplify right side
    9,135.20x = 110,193,806.76
  5. Step 5: Solve for x
    x = 110,193,806.76/9,135.20
  6. Step 6: Final answer
    x = 12,062.55

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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.