Home / 11,149.20-15,385.93-6,113.40

Finding the Fourth Proportional to 11,149.20, 15,385.93 and 6,113.40

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Solution

The fourth proportional to 11,149.20, 15,385.93 and 6,113.40 is: 8,436.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,149.20 : 15,385.93 = 6,113.40 : x
  2. Step 2: Convert to fraction form
    11,149.20/15,385.93 = 6,113.40/x
  3. Step 3: Cross multiply
    11,149.20x = 15,385.93 × 6,113.40
  4. Step 4: Simplify right side
    11,149.20x = 94,060,344.46
  5. Step 5: Solve for x
    x = 94,060,344.46/11,149.20
  6. Step 6: Final answer
    x = 8,436.51

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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.