Home / 11,314.08-15,613.47-6,278.40

Finding the Fourth Proportional to 11,314.08, 15,613.47 and 6,278.40

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Solution

The fourth proportional to 11,314.08, 15,613.47 and 6,278.40 is: 8,664.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,314.08 : 15,613.47 = 6,278.40 : x
  2. Step 2: Convert to fraction form
    11,314.08/15,613.47 = 6,278.40/x
  3. Step 3: Cross multiply
    11,314.08x = 15,613.47 × 6,278.40
  4. Step 4: Simplify right side
    11,314.08x = 98,027,610.05
  5. Step 5: Solve for x
    x = 98,027,610.05/11,314.08
  6. Step 6: Final answer
    x = 8,664.21

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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.