Home / 19,558.26-26,989.20-11,490.72

Finding the Fourth Proportional to 19,558.26, 26,989.20 and 11,490.72

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Solution

The fourth proportional to 19,558.26, 26,989.20 and 11,490.72 is: 15,856.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,558.26 : 26,989.20 = 11,490.72 : x
  2. Step 2: Convert to fraction form
    19,558.26/26,989.20 = 11,490.72/x
  3. Step 3: Cross multiply
    19,558.26x = 26,989.20 × 11,490.72
  4. Step 4: Simplify right side
    19,558.26x = 310,125,340.22
  5. Step 5: Solve for x
    x = 310,125,340.22/19,558.26
  6. Step 6: Final answer
    x = 15,856.49

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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.