Home / 15,209.28-20,980.80-10,733.76

Finding the Fourth Proportional to 15,209.28, 20,980.80 and 10,733.76

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Solution

The fourth proportional to 15,209.28, 20,980.80 and 10,733.76 is: 14,806.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,209.28 : 20,980.80 = 10,733.76 : x
  2. Step 2: Convert to fraction form
    15,209.28/20,980.80 = 10,733.76/x
  3. Step 3: Cross multiply
    15,209.28x = 20,980.80 × 10,733.76
  4. Step 4: Simplify right side
    15,209.28x = 225,202,871.81
  5. Step 5: Solve for x
    x = 225,202,871.81/15,209.28
  6. Step 6: Final answer
    x = 14,806.94

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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.