Home / 12,827.05-17,701.40-7,521.95

Finding the Fourth Proportional to 12,827.05, 17,701.40 and 7,521.95

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Solution

The fourth proportional to 12,827.05, 17,701.40 and 7,521.95 is: 10,380.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,827.05 : 17,701.40 = 7,521.95 : x
  2. Step 2: Convert to fraction form
    12,827.05/17,701.40 = 7,521.95/x
  3. Step 3: Cross multiply
    12,827.05x = 17,701.40 × 7,521.95
  4. Step 4: Simplify right side
    12,827.05x = 133,149,045.73
  5. Step 5: Solve for x
    x = 133,149,045.73/12,827.05
  6. Step 6: Final answer
    x = 10,380.33

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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.