Home / 15,554.46-21,472.38-9,178.95

Finding the Fourth Proportional to 15,554.46, 21,472.38 and 9,178.95

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Solution

The fourth proportional to 15,554.46, 21,472.38 and 9,178.95 is: 12,671.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,554.46 : 21,472.38 = 9,178.95 : x
  2. Step 2: Convert to fraction form
    15,554.46/21,472.38 = 9,178.95/x
  3. Step 3: Cross multiply
    15,554.46x = 21,472.38 × 9,178.95
  4. Step 4: Simplify right side
    15,554.46x = 197,093,902.40
  5. Step 5: Solve for x
    x = 197,093,902.40/15,554.46
  6. Step 6: Final answer
    x = 12,671.21

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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.