Home / 13,092.64-18,067.88-7,124.40

Finding the Fourth Proportional to 13,092.64, 18,067.88 and 7,124.40

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Solution

The fourth proportional to 13,092.64, 18,067.88 and 7,124.40 is: 9,831.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,092.64 : 18,067.88 = 7,124.40 : x
  2. Step 2: Convert to fraction form
    13,092.64/18,067.88 = 7,124.40/x
  3. Step 3: Cross multiply
    13,092.64x = 18,067.88 × 7,124.40
  4. Step 4: Simplify right side
    13,092.64x = 128,722,804.27
  5. Step 5: Solve for x
    x = 128,722,804.27/13,092.64
  6. Step 6: Final answer
    x = 9,831.69

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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.