Home / 11,109.85-15,330.76-6,074.16

Finding the Fourth Proportional to 11,109.85, 15,330.76 and 6,074.16

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Solution

The fourth proportional to 11,109.85, 15,330.76 and 6,074.16 is: 8,381.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,109.85 : 15,330.76 = 6,074.16 : x
  2. Step 2: Convert to fraction form
    11,109.85/15,330.76 = 6,074.16/x
  3. Step 3: Cross multiply
    11,109.85x = 15,330.76 × 6,074.16
  4. Step 4: Simplify right side
    11,109.85x = 93,121,537.30
  5. Step 5: Solve for x
    x = 93,121,537.30/11,109.85
  6. Step 6: Final answer
    x = 8,381.89

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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.