Home / 12,452.78-18,675.30-4,130.93

Finding the Fourth Proportional to 12,452.78, 18,675.30 and 4,130.93

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Solution

The fourth proportional to 12,452.78, 18,675.30 and 4,130.93 is: 6,195.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,452.78 : 18,675.30 = 4,130.93 : x
  2. Step 2: Convert to fraction form
    12,452.78/18,675.30 = 4,130.93/x
  3. Step 3: Cross multiply
    12,452.78x = 18,675.30 × 4,130.93
  4. Step 4: Simplify right side
    12,452.78x = 77,146,357.03
  5. Step 5: Solve for x
    x = 77,146,357.03/12,452.78
  6. Step 6: Final answer
    x = 6,195.11

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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.