Home / 19,892.79-27,451.98-11,397.68

Finding the Fourth Proportional to 19,892.79, 27,451.98 and 11,397.68

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Solution

The fourth proportional to 19,892.79, 27,451.98 and 11,397.68 is: 15,728.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,892.79 : 27,451.98 = 11,397.68 : x
  2. Step 2: Convert to fraction form
    19,892.79/27,451.98 = 11,397.68/x
  3. Step 3: Cross multiply
    19,892.79x = 27,451.98 × 11,397.68
  4. Step 4: Simplify right side
    19,892.79x = 312,888,746.15
  5. Step 5: Solve for x
    x = 312,888,746.15/19,892.79
  6. Step 6: Final answer
    x = 15,728.75

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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.