Home / 7,929.65-11,885.88-5,158.29

Finding the Fourth Proportional to 7,929.65, 11,885.88 and 5,158.29

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Solution

The fourth proportional to 7,929.65, 11,885.88 and 5,158.29 is: 7,731.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.65 : 11,885.88 = 5,158.29 : x
  2. Step 2: Convert to fraction form
    7,929.65/11,885.88 = 5,158.29/x
  3. Step 3: Cross multiply
    7,929.65x = 11,885.88 × 5,158.29
  4. Step 4: Simplify right side
    7,929.65x = 61,310,815.95
  5. Step 5: Solve for x
    x = 61,310,815.95/7,929.65
  6. Step 6: Final answer
    x = 7,731.85

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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.