Home / 7,985.47-11,965.88-5,057.62

Finding the Fourth Proportional to 7,985.47, 11,965.88 and 5,057.62

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Solution

The fourth proportional to 7,985.47, 11,965.88 and 5,057.62 is: 7,578.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985.47 : 11,965.88 = 5,057.62 : x
  2. Step 2: Convert to fraction form
    7,985.47/11,965.88 = 5,057.62/x
  3. Step 3: Cross multiply
    7,985.47x = 11,965.88 × 5,057.62
  4. Step 4: Simplify right side
    7,985.47x = 60,518,818.80
  5. Step 5: Solve for x
    x = 60,518,818.80/7,985.47
  6. Step 6: Final answer
    x = 7,578.62

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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.