Home / 12,454.03-18,681.13-3,689.02

Finding the Fourth Proportional to 12,454.03, 18,681.13 and 3,689.02

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Solution

The fourth proportional to 12,454.03, 18,681.13 and 3,689.02 is: 5,533.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,454.03 : 18,681.13 = 3,689.02 : x
  2. Step 2: Convert to fraction form
    12,454.03/18,681.13 = 3,689.02/x
  3. Step 3: Cross multiply
    12,454.03x = 18,681.13 × 3,689.02
  4. Step 4: Simplify right side
    12,454.03x = 68,915,062.19
  5. Step 5: Solve for x
    x = 68,915,062.19/12,454.03
  6. Step 6: Final answer
    x = 5,533.56

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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.