Home / 18,275.76-25,220.97-10,318.05

Finding the Fourth Proportional to 18,275.76, 25,220.97 and 10,318.05

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Solution

The fourth proportional to 18,275.76, 25,220.97 and 10,318.05 is: 14,239.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.76 : 25,220.97 = 10,318.05 : x
  2. Step 2: Convert to fraction form
    18,275.76/25,220.97 = 10,318.05/x
  3. Step 3: Cross multiply
    18,275.76x = 25,220.97 × 10,318.05
  4. Step 4: Simplify right side
    18,275.76x = 260,231,229.51
  5. Step 5: Solve for x
    x = 260,231,229.51/18,275.76
  6. Step 6: Final answer
    x = 14,239.15

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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.