Home / 12,915.12-19,372.58-8,552.10

Finding the Fourth Proportional to 12,915.12, 19,372.58 and 8,552.10

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Solution

The fourth proportional to 12,915.12, 19,372.58 and 8,552.10 is: 12,828.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,915.12 : 19,372.58 = 8,552.10 : x
  2. Step 2: Convert to fraction form
    12,915.12/19,372.58 = 8,552.10/x
  3. Step 3: Cross multiply
    12,915.12x = 19,372.58 × 8,552.10
  4. Step 4: Simplify right side
    12,915.12x = 165,676,241.42
  5. Step 5: Solve for x
    x = 165,676,241.42/12,915.12
  6. Step 6: Final answer
    x = 12,828.08

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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.