Home / 11,093.85-15,312.51-7,319.79

Finding the Fourth Proportional to 11,093.85, 15,312.51 and 7,319.79

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Solution

The fourth proportional to 11,093.85, 15,312.51 and 7,319.79 is: 10,103.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,093.85 : 15,312.51 = 7,319.79 : x
  2. Step 2: Convert to fraction form
    11,093.85/15,312.51 = 7,319.79/x
  3. Step 3: Cross multiply
    11,093.85x = 15,312.51 × 7,319.79
  4. Step 4: Simplify right side
    11,093.85x = 112,084,357.57
  5. Step 5: Solve for x
    x = 112,084,357.57/11,093.85
  6. Step 6: Final answer
    x = 10,103.29

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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.