Home / 10,941.74-15,073.26-8,702.90

Finding the Fourth Proportional to 10,941.74, 15,073.26 and 8,702.90

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Solution

The fourth proportional to 10,941.74, 15,073.26 and 8,702.90 is: 11,989.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,941.74 : 15,073.26 = 8,702.90 : x
  2. Step 2: Convert to fraction form
    10,941.74/15,073.26 = 8,702.90/x
  3. Step 3: Cross multiply
    10,941.74x = 15,073.26 × 8,702.90
  4. Step 4: Simplify right side
    10,941.74x = 131,181,074.45
  5. Step 5: Solve for x
    x = 131,181,074.45/10,941.74
  6. Step 6: Final answer
    x = 11,989.05

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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.