Home / 15,182.41-20,953.55-8,894.78

Finding the Fourth Proportional to 15,182.41, 20,953.55 and 8,894.78

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Solution

The fourth proportional to 15,182.41, 20,953.55 and 8,894.78 is: 12,275.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,182.41 : 20,953.55 = 8,894.78 : x
  2. Step 2: Convert to fraction form
    15,182.41/20,953.55 = 8,894.78/x
  3. Step 3: Cross multiply
    15,182.41x = 20,953.55 × 8,894.78
  4. Step 4: Simplify right side
    15,182.41x = 186,377,217.47
  5. Step 5: Solve for x
    x = 186,377,217.47/15,182.41
  6. Step 6: Final answer
    x = 12,275.87

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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.