Home / 12,340.90-18,514.08-3,575.08

Finding the Fourth Proportional to 12,340.90, 18,514.08 and 3,575.08

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Solution

The fourth proportional to 12,340.90, 18,514.08 and 3,575.08 is: 5,363.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,340.90 : 18,514.08 = 3,575.08 : x
  2. Step 2: Convert to fraction form
    12,340.90/18,514.08 = 3,575.08/x
  3. Step 3: Cross multiply
    12,340.90x = 18,514.08 × 3,575.08
  4. Step 4: Simplify right side
    12,340.90x = 66,189,317.13
  5. Step 5: Solve for x
    x = 66,189,317.13/12,340.90
  6. Step 6: Final answer
    x = 5,363.41

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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.