Home / 9,139.16-13,693.14-4,971.73

Finding the Fourth Proportional to 9,139.16, 13,693.14 and 4,971.73

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Solution

The fourth proportional to 9,139.16, 13,693.14 and 4,971.73 is: 7,449.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,139.16 : 13,693.14 = 4,971.73 : x
  2. Step 2: Convert to fraction form
    9,139.16/13,693.14 = 4,971.73/x
  3. Step 3: Cross multiply
    9,139.16x = 13,693.14 × 4,971.73
  4. Step 4: Simplify right side
    9,139.16x = 68,078,548.27
  5. Step 5: Solve for x
    x = 68,078,548.27/9,139.16
  6. Step 6: Final answer
    x = 7,449.10

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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.