Home / 15,518.88-23,282.90-8,949.78

Finding the Fourth Proportional to 15,518.88, 23,282.90 and 8,949.78

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Solution

The fourth proportional to 15,518.88, 23,282.90 and 8,949.78 is: 13,427.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,518.88 : 23,282.90 = 8,949.78 : x
  2. Step 2: Convert to fraction form
    15,518.88/23,282.90 = 8,949.78/x
  3. Step 3: Cross multiply
    15,518.88x = 23,282.90 × 8,949.78
  4. Step 4: Simplify right side
    15,518.88x = 208,376,832.76
  5. Step 5: Solve for x
    x = 208,376,832.76/15,518.88
  6. Step 6: Final answer
    x = 13,427.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.