Home / 11,101.92-15,316.66-7,125.22

Finding the Fourth Proportional to 11,101.92, 15,316.66 and 7,125.22

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Solution

The fourth proportional to 11,101.92, 15,316.66 and 7,125.22 is: 9,830.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,101.92 : 15,316.66 = 7,125.22 : x
  2. Step 2: Convert to fraction form
    11,101.92/15,316.66 = 7,125.22/x
  3. Step 3: Cross multiply
    11,101.92x = 15,316.66 × 7,125.22
  4. Step 4: Simplify right side
    11,101.92x = 109,134,572.17
  5. Step 5: Solve for x
    x = 109,134,572.17/11,101.92
  6. Step 6: Final answer
    x = 9,830.24

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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.