Home / 8,687,365.12-12,960,508.82-8,217,072.64

Finding the Fourth Proportional to 8,687,365.12, 12,960,508.82 and 8,217,072.64

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Solution

The fourth proportional to 8,687,365.12, 12,960,508.82 and 8,217,072.64 is: 12,258,888.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687,365.12 : 12,960,508.82 = 8,217,072.64 : x
  2. Step 2: Convert to fraction form
    8,687,365.12/12,960,508.82 = 8,217,072.64/x
  3. Step 3: Cross multiply
    8,687,365.12x = 12,960,508.82 × 8,217,072.64
  4. Step 4: Simplify right side
    8,687,365.12x = 106,497,442,425,300.69
  5. Step 5: Solve for x
    x = 106,497,442,425,300.69/8,687,365.12
  6. Step 6: Final answer
    x = 12,258,888.74

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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.