Home / 13,545.03-18,690.57-7,576.55

Finding the Fourth Proportional to 13,545.03, 18,690.57 and 7,576.55

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Solution

The fourth proportional to 13,545.03, 18,690.57 and 7,576.55 is: 10,454.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545.03 : 18,690.57 = 7,576.55 : x
  2. Step 2: Convert to fraction form
    13,545.03/18,690.57 = 7,576.55/x
  3. Step 3: Cross multiply
    13,545.03x = 18,690.57 × 7,576.55
  4. Step 4: Simplify right side
    13,545.03x = 141,609,944.68
  5. Step 5: Solve for x
    x = 141,609,944.68/13,545.03
  6. Step 6: Final answer
    x = 10,454.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.