Home / 10,268.51-15,376.50-8,191.53

Finding the Fourth Proportional to 10,268.51, 15,376.50 and 8,191.53

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Solution

The fourth proportional to 10,268.51, 15,376.50 and 8,191.53 is: 12,266.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,268.51 : 15,376.50 = 8,191.53 : x
  2. Step 2: Convert to fraction form
    10,268.51/15,376.50 = 8,191.53/x
  3. Step 3: Cross multiply
    10,268.51x = 15,376.50 × 8,191.53
  4. Step 4: Simplify right side
    10,268.51x = 125,957,061.05
  5. Step 5: Solve for x
    x = 125,957,061.05/10,268.51
  6. Step 6: Final answer
    x = 12,266.35

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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.