Home / 11,417.68-15,757.48-7,169.44

Finding the Fourth Proportional to 11,417.68, 15,757.48 and 7,169.44

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Solution

The fourth proportional to 11,417.68, 15,757.48 and 7,169.44 is: 9,894.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,417.68 : 15,757.48 = 7,169.44 : x
  2. Step 2: Convert to fraction form
    11,417.68/15,757.48 = 7,169.44/x
  3. Step 3: Cross multiply
    11,417.68x = 15,757.48 × 7,169.44
  4. Step 4: Simplify right side
    11,417.68x = 112,972,307.41
  5. Step 5: Solve for x
    x = 112,972,307.41/11,417.68
  6. Step 6: Final answer
    x = 9,894.51

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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.