Home / 11,100.39-15,318.72-6,626.76

Finding the Fourth Proportional to 11,100.39, 15,318.72 and 6,626.76

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Solution

The fourth proportional to 11,100.39, 15,318.72 and 6,626.76 is: 9,145.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,100.39 : 15,318.72 = 6,626.76 : x
  2. Step 2: Convert to fraction form
    11,100.39/15,318.72 = 6,626.76/x
  3. Step 3: Cross multiply
    11,100.39x = 15,318.72 × 6,626.76
  4. Step 4: Simplify right side
    11,100.39x = 101,513,509.67
  5. Step 5: Solve for x
    x = 101,513,509.67/11,100.39
  6. Step 6: Final answer
    x = 9,145.04

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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.