Home / 8,369.80-11,545.38-5,384.68

Finding the Fourth Proportional to 8,369.80, 11,545.38 and 5,384.68

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Solution

The fourth proportional to 8,369.80, 11,545.38 and 5,384.68 is: 7,427.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,369.80 : 11,545.38 = 5,384.68 : x
  2. Step 2: Convert to fraction form
    8,369.80/11,545.38 = 5,384.68/x
  3. Step 3: Cross multiply
    8,369.80x = 11,545.38 × 5,384.68
  4. Step 4: Simplify right side
    8,369.80x = 62,168,176.78
  5. Step 5: Solve for x
    x = 62,168,176.78/8,369.80
  6. Step 6: Final answer
    x = 7,427.68

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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.