Home / 13,092.19-18,067.47-7,124.15

Finding the Fourth Proportional to 13,092.19, 18,067.47 and 7,124.15

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Solution

The fourth proportional to 13,092.19, 18,067.47 and 7,124.15 is: 9,831.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,092.19 : 18,067.47 = 7,124.15 : x
  2. Step 2: Convert to fraction form
    13,092.19/18,067.47 = 7,124.15/x
  3. Step 3: Cross multiply
    13,092.19x = 18,067.47 × 7,124.15
  4. Step 4: Simplify right side
    13,092.19x = 128,715,366.40
  5. Step 5: Solve for x
    x = 128,715,366.40/13,092.19
  6. Step 6: Final answer
    x = 9,831.46

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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.