Home / 8,719.26-12,031.56-4,942.86

Finding the Fourth Proportional to 8,719.26, 12,031.56 and 4,942.86

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Solution

The fourth proportional to 8,719.26, 12,031.56 and 4,942.86 is: 6,820.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.26 : 12,031.56 = 4,942.86 : x
  2. Step 2: Convert to fraction form
    8,719.26/12,031.56 = 4,942.86/x
  3. Step 3: Cross multiply
    8,719.26x = 12,031.56 × 4,942.86
  4. Step 4: Simplify right side
    8,719.26x = 59,470,316.66
  5. Step 5: Solve for x
    x = 59,470,316.66/8,719.26
  6. Step 6: Final answer
    x = 6,820.57

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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.