Home / 10,280.28-15,424.20-5,346.84

Finding the Fourth Proportional to 10,280.28, 15,424.20 and 5,346.84

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Solution

The fourth proportional to 10,280.28, 15,424.20 and 5,346.84 is: 8,022.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,280.28 : 15,424.20 = 5,346.84 : x
  2. Step 2: Convert to fraction form
    10,280.28/15,424.20 = 5,346.84/x
  3. Step 3: Cross multiply
    10,280.28x = 15,424.20 × 5,346.84
  4. Step 4: Simplify right side
    10,280.28x = 82,470,729.53
  5. Step 5: Solve for x
    x = 82,470,729.53/10,280.28
  6. Step 6: Final answer
    x = 8,022.23

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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.