Home / 9,540.24-14,310.36-4,920

Finding the Fourth Proportional to 9,540.24, 14,310.36 and 4,920

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Solution

The fourth proportional to 9,540.24, 14,310.36 and 4,920 is: 7,380.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,540.24 : 14,310.36 = 4,920 : x
  2. Step 2: Convert to fraction form
    9,540.24/14,310.36 = 4,920/x
  3. Step 3: Cross multiply
    9,540.24x = 14,310.36 × 4,920
  4. Step 4: Simplify right side
    9,540.24x = 70,406,971.20
  5. Step 5: Solve for x
    x = 70,406,971.20/9,540.24
  6. Step 6: Final answer
    x = 7,380.00

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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.