Home / 11,352.60-17,028.90-8,587.80

Finding the Fourth Proportional to 11,352.60, 17,028.90 and 8,587.80

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Solution

The fourth proportional to 11,352.60, 17,028.90 and 8,587.80 is: 12,881.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,352.60 : 17,028.90 = 8,587.80 : x
  2. Step 2: Convert to fraction form
    11,352.60/17,028.90 = 8,587.80/x
  3. Step 3: Cross multiply
    11,352.60x = 17,028.90 × 8,587.80
  4. Step 4: Simplify right side
    11,352.60x = 146,240,787.42
  5. Step 5: Solve for x
    x = 146,240,787.42/11,352.60
  6. Step 6: Final answer
    x = 12,881.70

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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.