Home / 10,360.69-15,545.63-5,429.16

Finding the Fourth Proportional to 10,360.69, 15,545.63 and 5,429.16

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Solution

The fourth proportional to 10,360.69, 15,545.63 and 5,429.16 is: 8,146.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,360.69 : 15,545.63 = 5,429.16 : x
  2. Step 2: Convert to fraction form
    10,360.69/15,545.63 = 5,429.16/x
  3. Step 3: Cross multiply
    10,360.69x = 15,545.63 × 5,429.16
  4. Step 4: Simplify right side
    10,360.69x = 84,399,607.70
  5. Step 5: Solve for x
    x = 84,399,607.70/10,360.69
  6. Step 6: Final answer
    x = 8,146.14

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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.