Home / 8,360.69-11,545.55-5,381.70

Finding the Fourth Proportional to 8,360.69, 11,545.55 and 5,381.70

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Solution

The fourth proportional to 8,360.69, 11,545.55 and 5,381.70 is: 7,431.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,360.69 : 11,545.55 = 5,381.70 : x
  2. Step 2: Convert to fraction form
    8,360.69/11,545.55 = 5,381.70/x
  3. Step 3: Cross multiply
    8,360.69x = 11,545.55 × 5,381.70
  4. Step 4: Simplify right side
    8,360.69x = 62,134,666.68
  5. Step 5: Solve for x
    x = 62,134,666.68/8,360.69
  6. Step 6: Final answer
    x = 7,431.77

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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.