Home / 10,677.24-15,987.87-7,540.29

Finding the Fourth Proportional to 10,677.24, 15,987.87 and 7,540.29

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Solution

The fourth proportional to 10,677.24, 15,987.87 and 7,540.29 is: 11,290.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,677.24 : 15,987.87 = 7,540.29 : x
  2. Step 2: Convert to fraction form
    10,677.24/15,987.87 = 7,540.29/x
  3. Step 3: Cross multiply
    10,677.24x = 15,987.87 × 7,540.29
  4. Step 4: Simplify right side
    10,677.24x = 120,553,176.28
  5. Step 5: Solve for x
    x = 120,553,176.28/10,677.24
  6. Step 6: Final answer
    x = 11,290.67

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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.