Home / 15,103.05-20,844.48-10,868.13

Finding the Fourth Proportional to 15,103.05, 20,844.48 and 10,868.13

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Solution

The fourth proportional to 15,103.05, 20,844.48 and 10,868.13 is: 14,999.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,103.05 : 20,844.48 = 10,868.13 : x
  2. Step 2: Convert to fraction form
    15,103.05/20,844.48 = 10,868.13/x
  3. Step 3: Cross multiply
    15,103.05x = 20,844.48 × 10,868.13
  4. Step 4: Simplify right side
    15,103.05x = 226,540,518.42
  5. Step 5: Solve for x
    x = 226,540,518.42/15,103.05
  6. Step 6: Final answer
    x = 14,999.65

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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.