Home / 11,101.80-15,319.62-6,385.17

Finding the Fourth Proportional to 11,101.80, 15,319.62 and 6,385.17

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Solution

The fourth proportional to 11,101.80, 15,319.62 and 6,385.17 is: 8,811.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,101.80 : 15,319.62 = 6,385.17 : x
  2. Step 2: Convert to fraction form
    11,101.80/15,319.62 = 6,385.17/x
  3. Step 3: Cross multiply
    11,101.80x = 15,319.62 × 6,385.17
  4. Step 4: Simplify right side
    11,101.80x = 97,818,378.04
  5. Step 5: Solve for x
    x = 97,818,378.04/11,101.80
  6. Step 6: Final answer
    x = 8,811.04

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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.