Home / 10,013.76-15,007.68-4,816.80

Finding the Fourth Proportional to 10,013.76, 15,007.68 and 4,816.80

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Solution

The fourth proportional to 10,013.76, 15,007.68 and 4,816.80 is: 7,218.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,013.76 : 15,007.68 = 4,816.80 : x
  2. Step 2: Convert to fraction form
    10,013.76/15,007.68 = 4,816.80/x
  3. Step 3: Cross multiply
    10,013.76x = 15,007.68 × 4,816.80
  4. Step 4: Simplify right side
    10,013.76x = 72,288,993.02
  5. Step 5: Solve for x
    x = 72,288,993.02/10,013.76
  6. Step 6: Final answer
    x = 7,218.97

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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.