Home / 10,545.36-15,812.64-5,617.68

Finding the Fourth Proportional to 10,545.36, 15,812.64 and 5,617.68

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Solution

The fourth proportional to 10,545.36, 15,812.64 and 5,617.68 is: 8,423.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,545.36 : 15,812.64 = 5,617.68 : x
  2. Step 2: Convert to fraction form
    10,545.36/15,812.64 = 5,617.68/x
  3. Step 3: Cross multiply
    10,545.36x = 15,812.64 × 5,617.68
  4. Step 4: Simplify right side
    10,545.36x = 88,830,351.48
  5. Step 5: Solve for x
    x = 88,830,351.48/10,545.36
  6. Step 6: Final answer
    x = 8,423.64

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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.