Home / 15,160.14-20,922.81-8,872.50

Finding the Fourth Proportional to 15,160.14, 20,922.81 and 8,872.50

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Solution

The fourth proportional to 15,160.14, 20,922.81 and 8,872.50 is: 12,245.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,160.14 : 20,922.81 = 8,872.50 : x
  2. Step 2: Convert to fraction form
    15,160.14/20,922.81 = 8,872.50/x
  3. Step 3: Cross multiply
    15,160.14x = 20,922.81 × 8,872.50
  4. Step 4: Simplify right side
    15,160.14x = 185,637,631.73
  5. Step 5: Solve for x
    x = 185,637,631.73/15,160.14
  6. Step 6: Final answer
    x = 12,245.11

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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.