Home / 15,211.28-20,983.56-10,735.76

Finding the Fourth Proportional to 15,211.28, 20,983.56 and 10,735.76

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Solution

The fourth proportional to 15,211.28, 20,983.56 and 10,735.76 is: 14,809.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,211.28 : 20,983.56 = 10,735.76 : x
  2. Step 2: Convert to fraction form
    15,211.28/20,983.56 = 10,735.76/x
  3. Step 3: Cross multiply
    15,211.28x = 20,983.56 × 10,735.76
  4. Step 4: Simplify right side
    15,211.28x = 225,274,464.11
  5. Step 5: Solve for x
    x = 225,274,464.11/15,211.28
  6. Step 6: Final answer
    x = 14,809.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.