Home / 10,519.80-15,718.08-10,151.89

Finding the Fourth Proportional to 10,519.80, 15,718.08 and 10,151.89

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Solution

The fourth proportional to 10,519.80, 15,718.08 and 10,151.89 is: 15,168.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,519.80 : 15,718.08 = 10,151.89 : x
  2. Step 2: Convert to fraction form
    10,519.80/15,718.08 = 10,151.89/x
  3. Step 3: Cross multiply
    10,519.80x = 15,718.08 × 10,151.89
  4. Step 4: Simplify right side
    10,519.80x = 159,568,200.75
  5. Step 5: Solve for x
    x = 159,568,200.75/10,519.80
  6. Step 6: Final answer
    x = 15,168.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.