Home / 15,482.24-21,365.20-8,767.76

Finding the Fourth Proportional to 15,482.24, 21,365.20 and 8,767.76

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Solution

The fourth proportional to 15,482.24, 21,365.20 and 8,767.76 is: 12,099.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,482.24 : 21,365.20 = 8,767.76 : x
  2. Step 2: Convert to fraction form
    15,482.24/21,365.20 = 8,767.76/x
  3. Step 3: Cross multiply
    15,482.24x = 21,365.20 × 8,767.76
  4. Step 4: Simplify right side
    15,482.24x = 187,324,945.95
  5. Step 5: Solve for x
    x = 187,324,945.95/15,482.24
  6. Step 6: Final answer
    x = 12,099.34

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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.