Home / 12,686,920.88-17,507,968.11-6,885,702.71

Finding the Fourth Proportional to 12,686,920.88, 17,507,968.11 and 6,885,702.71

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Solution

The fourth proportional to 12,686,920.88, 17,507,968.11 and 6,885,702.71 is: 9,502,279.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,686,920.88 : 17,507,968.11 = 6,885,702.71 : x
  2. Step 2: Convert to fraction form
    12,686,920.88/17,507,968.11 = 6,885,702.71/x
  3. Step 3: Cross multiply
    12,686,920.88x = 17,507,968.11 × 6,885,702.71
  4. Step 4: Simplify right side
    12,686,920.88x = 120,554,663,374,080.73
  5. Step 5: Solve for x
    x = 120,554,663,374,080.73/12,686,920.88
  6. Step 6: Final answer
    x = 9,502,279.12

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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.