Home / 15,040.42-20,756.84-9,071.73

Finding the Fourth Proportional to 15,040.42, 20,756.84 and 9,071.73

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Solution

The fourth proportional to 15,040.42, 20,756.84 and 9,071.73 is: 12,519.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,040.42 : 20,756.84 = 9,071.73 : x
  2. Step 2: Convert to fraction form
    15,040.42/20,756.84 = 9,071.73/x
  3. Step 3: Cross multiply
    15,040.42x = 20,756.84 × 9,071.73
  4. Step 4: Simplify right side
    15,040.42x = 188,300,402.77
  5. Step 5: Solve for x
    x = 188,300,402.77/15,040.42
  6. Step 6: Final answer
    x = 12,519.63

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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.