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Finding the Fourth Proportional to 8,900.04, 13,274.88 and 8,386.11

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Solution

The fourth proportional to 8,900.04, 13,274.88 and 8,386.11 is: 12,508.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,900.04 : 13,274.88 = 8,386.11 : x
  2. Step 2: Convert to fraction form
    8,900.04/13,274.88 = 8,386.11/x
  3. Step 3: Cross multiply
    8,900.04x = 13,274.88 × 8,386.11
  4. Step 4: Simplify right side
    8,900.04x = 111,324,603.92
  5. Step 5: Solve for x
    x = 111,324,603.92/8,900.04
  6. Step 6: Final answer
    x = 12,508.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.