Home / 12,540.11-17,307.90-7,234.20

Finding the Fourth Proportional to 12,540.11, 17,307.90 and 7,234.20

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Solution

The fourth proportional to 12,540.11, 17,307.90 and 7,234.20 is: 9,984.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,540.11 : 17,307.90 = 7,234.20 : x
  2. Step 2: Convert to fraction form
    12,540.11/17,307.90 = 7,234.20/x
  3. Step 3: Cross multiply
    12,540.11x = 17,307.90 × 7,234.20
  4. Step 4: Simplify right side
    12,540.11x = 125,208,810.18
  5. Step 5: Solve for x
    x = 125,208,810.18/12,540.11
  6. Step 6: Final answer
    x = 9,984.67

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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.