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Finding the Fourth Proportional to 8,860.40, 12,233.04 and 5,506.80

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Solution

The fourth proportional to 8,860.40, 12,233.04 and 5,506.80 is: 7,602.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,860.40 : 12,233.04 = 5,506.80 : x
  2. Step 2: Convert to fraction form
    8,860.40/12,233.04 = 5,506.80/x
  3. Step 3: Cross multiply
    8,860.40x = 12,233.04 × 5,506.80
  4. Step 4: Simplify right side
    8,860.40x = 67,364,904.67
  5. Step 5: Solve for x
    x = 67,364,904.67/8,860.40
  6. Step 6: Final answer
    x = 7,602.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.