Home / 8,988.27-12,405.45-6,860.50

Finding the Fourth Proportional to 8,988.27, 12,405.45 and 6,860.50

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Solution

The fourth proportional to 8,988.27, 12,405.45 and 6,860.50 is: 9,468.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.27 : 12,405.45 = 6,860.50 : x
  2. Step 2: Convert to fraction form
    8,988.27/12,405.45 = 6,860.50/x
  3. Step 3: Cross multiply
    8,988.27x = 12,405.45 × 6,860.50
  4. Step 4: Simplify right side
    8,988.27x = 85,107,584.44
  5. Step 5: Solve for x
    x = 85,107,584.44/8,988.27
  6. Step 6: Final answer
    x = 9,468.74

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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.