Home / 8,988.13-13,461.40-8,676.73

Finding the Fourth Proportional to 8,988.13, 13,461.40 and 8,676.73

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Solution

The fourth proportional to 8,988.13, 13,461.40 and 8,676.73 is: 12,995.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.13 : 13,461.40 = 8,676.73 : x
  2. Step 2: Convert to fraction form
    8,988.13/13,461.40 = 8,676.73/x
  3. Step 3: Cross multiply
    8,988.13x = 13,461.40 × 8,676.73
  4. Step 4: Simplify right side
    8,988.13x = 116,800,933.22
  5. Step 5: Solve for x
    x = 116,800,933.22/8,988.13
  6. Step 6: Final answer
    x = 12,995.02

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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.