Home / 8,403.84-11,585.28-6,161.76

Finding the Fourth Proportional to 8,403.84, 11,585.28 and 6,161.76

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Solution

The fourth proportional to 8,403.84, 11,585.28 and 6,161.76 is: 8,494.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,403.84 : 11,585.28 = 6,161.76 : x
  2. Step 2: Convert to fraction form
    8,403.84/11,585.28 = 6,161.76/x
  3. Step 3: Cross multiply
    8,403.84x = 11,585.28 × 6,161.76
  4. Step 4: Simplify right side
    8,403.84x = 71,385,714.89
  5. Step 5: Solve for x
    x = 71,385,714.89/8,403.84
  6. Step 6: Final answer
    x = 8,494.42

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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.