Home / 10,582.36-15,865.68-5,242.48

Finding the Fourth Proportional to 10,582.36, 15,865.68 and 5,242.48

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Solution

The fourth proportional to 10,582.36, 15,865.68 and 5,242.48 is: 7,859.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,582.36 : 15,865.68 = 5,242.48 : x
  2. Step 2: Convert to fraction form
    10,582.36/15,865.68 = 5,242.48/x
  3. Step 3: Cross multiply
    10,582.36x = 15,865.68 × 5,242.48
  4. Step 4: Simplify right side
    10,582.36x = 83,175,510.09
  5. Step 5: Solve for x
    x = 83,175,510.09/10,582.36
  6. Step 6: Final answer
    x = 7,859.83

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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.