Home / 12,748.45-19,115.25-4,948.15

Finding the Fourth Proportional to 12,748.45, 19,115.25 and 4,948.15

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Solution

The fourth proportional to 12,748.45, 19,115.25 and 4,948.15 is: 7,419.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,748.45 : 19,115.25 = 4,948.15 : x
  2. Step 2: Convert to fraction form
    12,748.45/19,115.25 = 4,948.15/x
  3. Step 3: Cross multiply
    12,748.45x = 19,115.25 × 4,948.15
  4. Step 4: Simplify right side
    12,748.45x = 94,585,124.29
  5. Step 5: Solve for x
    x = 94,585,124.29/12,748.45
  6. Step 6: Final answer
    x = 7,419.34

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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.