Home / 11,119.64-15,345.69-6,339.74

Finding the Fourth Proportional to 11,119.64, 15,345.69 and 6,339.74

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Solution

The fourth proportional to 11,119.64, 15,345.69 and 6,339.74 is: 8,749.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,119.64 : 15,345.69 = 6,339.74 : x
  2. Step 2: Convert to fraction form
    11,119.64/15,345.69 = 6,339.74/x
  3. Step 3: Cross multiply
    11,119.64x = 15,345.69 × 6,339.74
  4. Step 4: Simplify right side
    11,119.64x = 97,287,684.72
  5. Step 5: Solve for x
    x = 97,287,684.72/11,119.64
  6. Step 6: Final answer
    x = 8,749.18

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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.