Home / 19,772.64-27,292.32-11,394.72

Finding the Fourth Proportional to 19,772.64, 27,292.32 and 11,394.72

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Solution

The fourth proportional to 19,772.64, 27,292.32 and 11,394.72 is: 15,728.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,772.64 : 27,292.32 = 11,394.72 : x
  2. Step 2: Convert to fraction form
    19,772.64/27,292.32 = 11,394.72/x
  3. Step 3: Cross multiply
    19,772.64x = 27,292.32 × 11,394.72
  4. Step 4: Simplify right side
    19,772.64x = 310,988,344.55
  5. Step 5: Solve for x
    x = 310,988,344.55/19,772.64
  6. Step 6: Final answer
    x = 15,728.22

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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.