Home / 10,017.76-15,013.68-4,820.80

Finding the Fourth Proportional to 10,017.76, 15,013.68 and 4,820.80

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Solution

The fourth proportional to 10,017.76, 15,013.68 and 4,820.80 is: 7,224.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,017.76 : 15,013.68 = 4,820.80 : x
  2. Step 2: Convert to fraction form
    10,017.76/15,013.68 = 4,820.80/x
  3. Step 3: Cross multiply
    10,017.76x = 15,013.68 × 4,820.80
  4. Step 4: Simplify right side
    10,017.76x = 72,377,948.54
  5. Step 5: Solve for x
    x = 72,377,948.54/10,017.76
  6. Step 6: Final answer
    x = 7,224.96

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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.