Home / 13,552.90-20,329.55-4,787.89

Finding the Fourth Proportional to 13,552.90, 20,329.55 and 4,787.89

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Solution

The fourth proportional to 13,552.90, 20,329.55 and 4,787.89 is: 7,181.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,552.90 : 20,329.55 = 4,787.89 : x
  2. Step 2: Convert to fraction form
    13,552.90/20,329.55 = 4,787.89/x
  3. Step 3: Cross multiply
    13,552.90x = 20,329.55 × 4,787.89
  4. Step 4: Simplify right side
    13,552.90x = 97,335,649.15
  5. Step 5: Solve for x
    x = 97,335,649.15/13,552.90
  6. Step 6: Final answer
    x = 7,181.91

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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.