Home / 11,374.90-15,707.06-7,133.10

Finding the Fourth Proportional to 11,374.90, 15,707.06 and 7,133.10

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Solution

The fourth proportional to 11,374.90, 15,707.06 and 7,133.10 is: 9,849.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,374.90 : 15,707.06 = 7,133.10 : x
  2. Step 2: Convert to fraction form
    11,374.90/15,707.06 = 7,133.10/x
  3. Step 3: Cross multiply
    11,374.90x = 15,707.06 × 7,133.10
  4. Step 4: Simplify right side
    11,374.90x = 112,040,029.69
  5. Step 5: Solve for x
    x = 112,040,029.69/11,374.90
  6. Step 6: Final answer
    x = 9,849.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.