Home / 8,775.20-12,089.24-6,117.86

Finding the Fourth Proportional to 8,775.20, 12,089.24 and 6,117.86

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Solution

The fourth proportional to 8,775.20, 12,089.24 and 6,117.86 is: 8,428.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,775.20 : 12,089.24 = 6,117.86 : x
  2. Step 2: Convert to fraction form
    8,775.20/12,089.24 = 6,117.86/x
  3. Step 3: Cross multiply
    8,775.20x = 12,089.24 × 6,117.86
  4. Step 4: Simplify right side
    8,775.20x = 73,960,186.79
  5. Step 5: Solve for x
    x = 73,960,186.79/8,775.20
  6. Step 6: Final answer
    x = 8,428.32

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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.