Home / 8,820.86-12,168.44-6,427.10

Finding the Fourth Proportional to 8,820.86, 12,168.44 and 6,427.10

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Solution

The fourth proportional to 8,820.86, 12,168.44 and 6,427.10 is: 8,866.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,820.86 : 12,168.44 = 6,427.10 : x
  2. Step 2: Convert to fraction form
    8,820.86/12,168.44 = 6,427.10/x
  3. Step 3: Cross multiply
    8,820.86x = 12,168.44 × 6,427.10
  4. Step 4: Simplify right side
    8,820.86x = 78,207,780.72
  5. Step 5: Solve for x
    x = 78,207,780.72/8,820.86
  6. Step 6: Final answer
    x = 8,866.23

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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.