Home / 14,780.40-20,397.11-8,065.95

Finding the Fourth Proportional to 14,780.40, 20,397.11 and 8,065.95

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Solution

The fourth proportional to 14,780.40, 20,397.11 and 8,065.95 is: 11,131.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,780.40 : 20,397.11 = 8,065.95 : x
  2. Step 2: Convert to fraction form
    14,780.40/20,397.11 = 8,065.95/x
  3. Step 3: Cross multiply
    14,780.40x = 20,397.11 × 8,065.95
  4. Step 4: Simplify right side
    14,780.40x = 164,522,029.07
  5. Step 5: Solve for x
    x = 164,522,029.07/14,780.40
  6. Step 6: Final answer
    x = 11,131.09

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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.