Home / 10,185.52-15,280.66-3,165.16

Finding the Fourth Proportional to 10,185.52, 15,280.66 and 3,165.16

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Solution

The fourth proportional to 10,185.52, 15,280.66 and 3,165.16 is: 4,748.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,185.52 : 15,280.66 = 3,165.16 : x
  2. Step 2: Convert to fraction form
    10,185.52/15,280.66 = 3,165.16/x
  3. Step 3: Cross multiply
    10,185.52x = 15,280.66 × 3,165.16
  4. Step 4: Simplify right side
    10,185.52x = 48,365,733.81
  5. Step 5: Solve for x
    x = 48,365,733.81/10,185.52
  6. Step 6: Final answer
    x = 4,748.48

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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.