Home / 12,391.47-17,100.27-6,726.23

Finding the Fourth Proportional to 12,391.47, 17,100.27 and 6,726.23

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Solution

The fourth proportional to 12,391.47, 17,100.27 and 6,726.23 is: 9,282.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,391.47 : 17,100.27 = 6,726.23 : x
  2. Step 2: Convert to fraction form
    12,391.47/17,100.27 = 6,726.23/x
  3. Step 3: Cross multiply
    12,391.47x = 17,100.27 × 6,726.23
  4. Step 4: Simplify right side
    12,391.47x = 115,020,263.58
  5. Step 5: Solve for x
    x = 115,020,263.58/12,391.47
  6. Step 6: Final answer
    x = 9,282.21

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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.