Home / 10,928.40-16,399.08-10,236.52

Finding the Fourth Proportional to 10,928.40, 16,399.08 and 10,236.52

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Solution

The fourth proportional to 10,928.40, 16,399.08 and 10,236.52 is: 15,360.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,928.40 : 16,399.08 = 10,236.52 : x
  2. Step 2: Convert to fraction form
    10,928.40/16,399.08 = 10,236.52/x
  3. Step 3: Cross multiply
    10,928.40x = 16,399.08 × 10,236.52
  4. Step 4: Simplify right side
    10,928.40x = 167,869,510.40
  5. Step 5: Solve for x
    x = 167,869,510.40/10,928.40
  6. Step 6: Final answer
    x = 15,360.85

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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.