Home / 11,552.60-17,328.90-8,787.80

Finding the Fourth Proportional to 11,552.60, 17,328.90 and 8,787.80

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Solution

The fourth proportional to 11,552.60, 17,328.90 and 8,787.80 is: 13,181.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,552.60 : 17,328.90 = 8,787.80 : x
  2. Step 2: Convert to fraction form
    11,552.60/17,328.90 = 8,787.80/x
  3. Step 3: Cross multiply
    11,552.60x = 17,328.90 × 8,787.80
  4. Step 4: Simplify right side
    11,552.60x = 152,282,907.42
  5. Step 5: Solve for x
    x = 152,282,907.42/11,552.60
  6. Step 6: Final answer
    x = 13,181.70

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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.