Home / 18,212.19-25,132.75-10,256.95

Finding the Fourth Proportional to 18,212.19, 25,132.75 and 10,256.95

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Solution

The fourth proportional to 18,212.19, 25,132.75 and 10,256.95 is: 14,154.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,212.19 : 25,132.75 = 10,256.95 : x
  2. Step 2: Convert to fraction form
    18,212.19/25,132.75 = 10,256.95/x
  3. Step 3: Cross multiply
    18,212.19x = 25,132.75 × 10,256.95
  4. Step 4: Simplify right side
    18,212.19x = 257,785,360.11
  5. Step 5: Solve for x
    x = 257,785,360.11/18,212.19
  6. Step 6: Final answer
    x = 14,154.55

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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.