Home / 10,247.16-15,359.67-4,971

Finding the Fourth Proportional to 10,247.16, 15,359.67 and 4,971

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Solution

The fourth proportional to 10,247.16, 15,359.67 and 4,971 is: 7,451.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,247.16 : 15,359.67 = 4,971 : x
  2. Step 2: Convert to fraction form
    10,247.16/15,359.67 = 4,971/x
  3. Step 3: Cross multiply
    10,247.16x = 15,359.67 × 4,971
  4. Step 4: Simplify right side
    10,247.16x = 76,352,919.57
  5. Step 5: Solve for x
    x = 76,352,919.57/10,247.16
  6. Step 6: Final answer
    x = 7,451.13

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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.