Home / 13,700.24-20,561.88-10,981.52

Finding the Fourth Proportional to 13,700.24, 20,561.88 and 10,981.52

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Solution

The fourth proportional to 13,700.24, 20,561.88 and 10,981.52 is: 16,481.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,700.24 : 20,561.88 = 10,981.52 : x
  2. Step 2: Convert to fraction form
    13,700.24/20,561.88 = 10,981.52/x
  3. Step 3: Cross multiply
    13,700.24x = 20,561.88 × 10,981.52
  4. Step 4: Simplify right side
    13,700.24x = 225,800,696.46
  5. Step 5: Solve for x
    x = 225,800,696.46/13,700.24
  6. Step 6: Final answer
    x = 16,481.51

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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.