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Finding the Fourth Proportional to 8,888.79, 13,328.70 and 2,963.61

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Solution

The fourth proportional to 8,888.79, 13,328.70 and 2,963.61 is: 4,443.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,888.79 : 13,328.70 = 2,963.61 : x
  2. Step 2: Convert to fraction form
    8,888.79/13,328.70 = 2,963.61/x
  3. Step 3: Cross multiply
    8,888.79x = 13,328.70 × 2,963.61
  4. Step 4: Simplify right side
    8,888.79x = 39,501,111.65
  5. Step 5: Solve for x
    x = 39,501,111.65/8,888.79
  6. Step 6: Final answer
    x = 4,443.93

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1.5x scale

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.