Home / 10,185.93-15,278.16-3,165.75

Finding the Fourth Proportional to 10,185.93, 15,278.16 and 3,165.75

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Solution

The fourth proportional to 10,185.93, 15,278.16 and 3,165.75 is: 4,748.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,185.93 : 15,278.16 = 3,165.75 : x
  2. Step 2: Convert to fraction form
    10,185.93/15,278.16 = 3,165.75/x
  3. Step 3: Cross multiply
    10,185.93x = 15,278.16 × 3,165.75
  4. Step 4: Simplify right side
    10,185.93x = 48,366,835.02
  5. Step 5: Solve for x
    x = 48,366,835.02/10,185.93
  6. Step 6: Final answer
    x = 4,748.40

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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.