Home / 8,827.47-12,179.70-6,465.51

Finding the Fourth Proportional to 8,827.47, 12,179.70 and 6,465.51

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Solution

The fourth proportional to 8,827.47, 12,179.70 and 6,465.51 is: 8,920.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,827.47 : 12,179.70 = 6,465.51 : x
  2. Step 2: Convert to fraction form
    8,827.47/12,179.70 = 6,465.51/x
  3. Step 3: Cross multiply
    8,827.47x = 12,179.70 × 6,465.51
  4. Step 4: Simplify right side
    8,827.47x = 78,747,972.15
  5. Step 5: Solve for x
    x = 78,747,972.15/8,827.47
  6. Step 6: Final answer
    x = 8,920.79

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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.