Home / 14,854.88-20,497.13-8,478.56

Finding the Fourth Proportional to 14,854.88, 20,497.13 and 8,478.56

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Solution

The fourth proportional to 14,854.88, 20,497.13 and 8,478.56 is: 11,698.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,854.88 : 20,497.13 = 8,478.56 : x
  2. Step 2: Convert to fraction form
    14,854.88/20,497.13 = 8,478.56/x
  3. Step 3: Cross multiply
    14,854.88x = 20,497.13 × 8,478.56
  4. Step 4: Simplify right side
    14,854.88x = 173,786,146.53
  5. Step 5: Solve for x
    x = 173,786,146.53/14,854.88
  6. Step 6: Final answer
    x = 11,698.93

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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.