Home / 15,546.23-21,453.76-8,472.64

Finding the Fourth Proportional to 15,546.23, 21,453.76 and 8,472.64

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Solution

The fourth proportional to 15,546.23, 21,453.76 and 8,472.64 is: 11,692.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,546.23 : 21,453.76 = 8,472.64 : x
  2. Step 2: Convert to fraction form
    15,546.23/21,453.76 = 8,472.64/x
  3. Step 3: Cross multiply
    15,546.23x = 21,453.76 × 8,472.64
  4. Step 4: Simplify right side
    15,546.23x = 181,769,985.13
  5. Step 5: Solve for x
    x = 181,769,985.13/15,546.23
  6. Step 6: Final answer
    x = 11,692.22

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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.