Home / 18,275.84-25,221.12-11,206.16

Finding the Fourth Proportional to 18,275.84, 25,221.12 and 11,206.16

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Solution

The fourth proportional to 18,275.84, 25,221.12 and 11,206.16 is: 15,464.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.84 : 25,221.12 = 11,206.16 : x
  2. Step 2: Convert to fraction form
    18,275.84/25,221.12 = 11,206.16/x
  3. Step 3: Cross multiply
    18,275.84x = 25,221.12 × 11,206.16
  4. Step 4: Simplify right side
    18,275.84x = 282,631,906.10
  5. Step 5: Solve for x
    x = 282,631,906.10/18,275.84
  6. Step 6: Final answer
    x = 15,464.78

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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.