Home / 11,279.08-15,563.60-6,741.72

Finding the Fourth Proportional to 11,279.08, 15,563.60 and 6,741.72

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Solution

The fourth proportional to 11,279.08, 15,563.60 and 6,741.72 is: 9,302.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.08 : 15,563.60 = 6,741.72 : x
  2. Step 2: Convert to fraction form
    11,279.08/15,563.60 = 6,741.72/x
  3. Step 3: Cross multiply
    11,279.08x = 15,563.60 × 6,741.72
  4. Step 4: Simplify right side
    11,279.08x = 104,925,433.39
  5. Step 5: Solve for x
    x = 104,925,433.39/11,279.08
  6. Step 6: Final answer
    x = 9,302.66

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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.