Home / 8,868.87-13,303.71-3,320.79

Finding the Fourth Proportional to 8,868.87, 13,303.71 and 3,320.79

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Solution

The fourth proportional to 8,868.87, 13,303.71 and 3,320.79 is: 4,981.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868.87 : 13,303.71 = 3,320.79 : x
  2. Step 2: Convert to fraction form
    8,868.87/13,303.71 = 3,320.79/x
  3. Step 3: Cross multiply
    8,868.87x = 13,303.71 × 3,320.79
  4. Step 4: Simplify right side
    8,868.87x = 44,178,827.13
  5. Step 5: Solve for x
    x = 44,178,827.13/8,868.87
  6. Step 6: Final answer
    x = 4,981.34

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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.