Home / 9,120.93-13,681.40-2,195.43

Finding the Fourth Proportional to 9,120.93, 13,681.40 and 2,195.43

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Solution

The fourth proportional to 9,120.93, 13,681.40 and 2,195.43 is: 3,293.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120.93 : 13,681.40 = 2,195.43 : x
  2. Step 2: Convert to fraction form
    9,120.93/13,681.40 = 2,195.43/x
  3. Step 3: Cross multiply
    9,120.93x = 13,681.40 × 2,195.43
  4. Step 4: Simplify right side
    9,120.93x = 30,036,545.02
  5. Step 5: Solve for x
    x = 30,036,545.02/9,120.93
  6. Step 6: Final answer
    x = 3,293.15

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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.