Home / 12,763.38-19,145.10-4,972.20

Finding the Fourth Proportional to 12,763.38, 19,145.10 and 4,972.20

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Solution

The fourth proportional to 12,763.38, 19,145.10 and 4,972.20 is: 7,458.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,763.38 : 19,145.10 = 4,972.20 : x
  2. Step 2: Convert to fraction form
    12,763.38/19,145.10 = 4,972.20/x
  3. Step 3: Cross multiply
    12,763.38x = 19,145.10 × 4,972.20
  4. Step 4: Simplify right side
    12,763.38x = 95,193,266.22
  5. Step 5: Solve for x
    x = 95,193,266.22/12,763.38
  6. Step 6: Final answer
    x = 7,458.31

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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.