Home / 10,647.16-15,958.80-4,320.57

Finding the Fourth Proportional to 10,647.16, 15,958.80 and 4,320.57

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Solution

The fourth proportional to 10,647.16, 15,958.80 and 4,320.57 is: 6,476.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,647.16 : 15,958.80 = 4,320.57 : x
  2. Step 2: Convert to fraction form
    10,647.16/15,958.80 = 4,320.57/x
  3. Step 3: Cross multiply
    10,647.16x = 15,958.80 × 4,320.57
  4. Step 4: Simplify right side
    10,647.16x = 68,951,112.52
  5. Step 5: Solve for x
    x = 68,951,112.52/10,647.16
  6. Step 6: Final answer
    x = 6,476.01

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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.