Home / 15,546.58-21,454.40-8,472.98

Finding the Fourth Proportional to 15,546.58, 21,454.40 and 8,472.98

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Solution

The fourth proportional to 15,546.58, 21,454.40 and 8,472.98 is: 11,692.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,546.58 : 21,454.40 = 8,472.98 : x
  2. Step 2: Convert to fraction form
    15,546.58/21,454.40 = 8,472.98/x
  3. Step 3: Cross multiply
    15,546.58x = 21,454.40 × 8,472.98
  4. Step 4: Simplify right side
    15,546.58x = 181,782,702.11
  5. Step 5: Solve for x
    x = 181,782,702.11/15,546.58
  6. Step 6: Final answer
    x = 11,692.78

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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.