Home / 12,892,106.75-17,791,443.92-7,091,040.74

Finding the Fourth Proportional to 12,892,106.75, 17,791,443.92 and 7,091,040.74

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Solution

The fourth proportional to 12,892,106.75, 17,791,443.92 and 7,091,040.74 is: 9,785,821.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,892,106.75 : 17,791,443.92 = 7,091,040.74 : x
  2. Step 2: Convert to fraction form
    12,892,106.75/17,791,443.92 = 7,091,040.74/x
  3. Step 3: Cross multiply
    12,892,106.75x = 17,791,443.92 × 7,091,040.74
  4. Step 4: Simplify right side
    12,892,106.75x = 126,159,853,588,915.69
  5. Step 5: Solve for x
    x = 126,159,853,588,915.69/12,892,106.75
  6. Step 6: Final answer
    x = 9,785,821.36

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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.