Home / 8,864.75-13,291.59-3,315.17

Finding the Fourth Proportional to 8,864.75, 13,291.59 and 3,315.17

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Solution

The fourth proportional to 8,864.75, 13,291.59 and 3,315.17 is: 4,970.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,864.75 : 13,291.59 = 3,315.17 : x
  2. Step 2: Convert to fraction form
    8,864.75/13,291.59 = 3,315.17/x
  3. Step 3: Cross multiply
    8,864.75x = 13,291.59 × 3,315.17
  4. Step 4: Simplify right side
    8,864.75x = 44,063,880.42
  5. Step 5: Solve for x
    x = 44,063,880.42/8,864.75
  6. Step 6: Final answer
    x = 4,970.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.