Home / 11,152.80-15,391.16-6,117.24

Finding the Fourth Proportional to 11,152.80, 15,391.16 and 6,117.24

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Solution

The fourth proportional to 11,152.80, 15,391.16 and 6,117.24 is: 8,441.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,152.80 : 15,391.16 = 6,117.24 : x
  2. Step 2: Convert to fraction form
    11,152.80/15,391.16 = 6,117.24/x
  3. Step 3: Cross multiply
    11,152.80x = 15,391.16 × 6,117.24
  4. Step 4: Simplify right side
    11,152.80x = 94,151,419.60
  5. Step 5: Solve for x
    x = 94,151,419.60/11,152.80
  6. Step 6: Final answer
    x = 8,441.95

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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.