Home / 12,397.02-17,107.92-7,091.98

Finding the Fourth Proportional to 12,397.02, 17,107.92 and 7,091.98

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Solution

The fourth proportional to 12,397.02, 17,107.92 and 7,091.98 is: 9,786.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,397.02 : 17,107.92 = 7,091.98 : x
  2. Step 2: Convert to fraction form
    12,397.02/17,107.92 = 7,091.98/x
  3. Step 3: Cross multiply
    12,397.02x = 17,107.92 × 7,091.98
  4. Step 4: Simplify right side
    12,397.02x = 121,329,026.48
  5. Step 5: Solve for x
    x = 121,329,026.48/12,397.02
  6. Step 6: Final answer
    x = 9,786.95

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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.