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Finding the Fourth Proportional to 8,991.32, 13,510.92 and 4,834.40

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Solution

The fourth proportional to 8,991.32, 13,510.92 and 4,834.40 is: 7,264.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991.32 : 13,510.92 = 4,834.40 : x
  2. Step 2: Convert to fraction form
    8,991.32/13,510.92 = 4,834.40/x
  3. Step 3: Cross multiply
    8,991.32x = 13,510.92 × 4,834.40
  4. Step 4: Simplify right side
    8,991.32x = 65,317,191.65
  5. Step 5: Solve for x
    x = 65,317,191.65/8,991.32
  6. Step 6: Final answer
    x = 7,264.47

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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.