Home / 9,418.80-14,128.19-3,575.40

Finding the Fourth Proportional to 9,418.80, 14,128.19 and 3,575.40

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Solution

The fourth proportional to 9,418.80, 14,128.19 and 3,575.40 is: 5,363.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,418.80 : 14,128.19 = 3,575.40 : x
  2. Step 2: Convert to fraction form
    9,418.80/14,128.19 = 3,575.40/x
  3. Step 3: Cross multiply
    9,418.80x = 14,128.19 × 3,575.40
  4. Step 4: Simplify right side
    9,418.80x = 50,513,930.53
  5. Step 5: Solve for x
    x = 50,513,930.53/9,418.80
  6. Step 6: Final answer
    x = 5,363.10

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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.