Home / 19,772.50-27,290.91-11,393.86

Finding the Fourth Proportional to 19,772.50, 27,290.91 and 11,393.86

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Solution

The fourth proportional to 19,772.50, 27,290.91 and 11,393.86 is: 15,726.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,772.50 : 27,290.91 = 11,393.86 : x
  2. Step 2: Convert to fraction form
    19,772.50/27,290.91 = 11,393.86/x
  3. Step 3: Cross multiply
    19,772.50x = 27,290.91 × 11,393.86
  4. Step 4: Simplify right side
    19,772.50x = 310,948,807.81
  5. Step 5: Solve for x
    x = 310,948,807.81/19,772.50
  6. Step 6: Final answer
    x = 15,726.33

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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.