Home / 19,099.28-28,638.12-5,947.76

Finding the Fourth Proportional to 19,099.28, 28,638.12 and 5,947.76

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Solution

The fourth proportional to 19,099.28, 28,638.12 and 5,947.76 is: 8,918.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,099.28 : 28,638.12 = 5,947.76 : x
  2. Step 2: Convert to fraction form
    19,099.28/28,638.12 = 5,947.76/x
  3. Step 3: Cross multiply
    19,099.28x = 28,638.12 × 5,947.76
  4. Step 4: Simplify right side
    19,099.28x = 170,332,664.61
  5. Step 5: Solve for x
    x = 170,332,664.61/19,099.28
  6. Step 6: Final answer
    x = 8,918.28

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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.