Home / 7,420.98-11,119.11-5,225.88

Finding the Fourth Proportional to 7,420.98, 11,119.11 and 5,225.88

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Solution

The fourth proportional to 7,420.98, 11,119.11 and 5,225.88 is: 7,830.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.98 : 11,119.11 = 5,225.88 : x
  2. Step 2: Convert to fraction form
    7,420.98/11,119.11 = 5,225.88/x
  3. Step 3: Cross multiply
    7,420.98x = 11,119.11 × 5,225.88
  4. Step 4: Simplify right side
    7,420.98x = 58,107,134.57
  5. Step 5: Solve for x
    x = 58,107,134.57/7,420.98
  6. Step 6: Final answer
    x = 7,830.12

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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.