Home / 13,065.65-19,592.80-4,742.90

Finding the Fourth Proportional to 13,065.65, 19,592.80 and 4,742.90

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Solution

The fourth proportional to 13,065.65, 19,592.80 and 4,742.90 is: 7,112.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,065.65 : 19,592.80 = 4,742.90 : x
  2. Step 2: Convert to fraction form
    13,065.65/19,592.80 = 4,742.90/x
  3. Step 3: Cross multiply
    13,065.65x = 19,592.80 × 4,742.90
  4. Step 4: Simplify right side
    13,065.65x = 92,926,691.12
  5. Step 5: Solve for x
    x = 92,926,691.12/13,065.65
  6. Step 6: Final answer
    x = 7,112.29

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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.