Home / 19,447.72-26,838.20-11,489.93

Finding the Fourth Proportional to 19,447.72, 26,838.20 and 11,489.93

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Solution

The fourth proportional to 19,447.72, 26,838.20 and 11,489.93 is: 15,856.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,447.72 : 26,838.20 = 11,489.93 : x
  2. Step 2: Convert to fraction form
    19,447.72/26,838.20 = 11,489.93/x
  3. Step 3: Cross multiply
    19,447.72x = 26,838.20 × 11,489.93
  4. Step 4: Simplify right side
    19,447.72x = 308,368,991.42
  5. Step 5: Solve for x
    x = 308,368,991.42/19,447.72
  6. Step 6: Final answer
    x = 15,856.30

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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.