Home / 19,490.68-26,890.14-11,102.32

Finding the Fourth Proportional to 19,490.68, 26,890.14 and 11,102.32

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Solution

The fourth proportional to 19,490.68, 26,890.14 and 11,102.32 is: 15,317.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,490.68 : 26,890.14 = 11,102.32 : x
  2. Step 2: Convert to fraction form
    19,490.68/26,890.14 = 11,102.32/x
  3. Step 3: Cross multiply
    19,490.68x = 26,890.14 × 11,102.32
  4. Step 4: Simplify right side
    19,490.68x = 298,542,939.12
  5. Step 5: Solve for x
    x = 298,542,939.12/19,490.68
  6. Step 6: Final answer
    x = 15,317.22

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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.