Home / 18,920.24-26,109.31-11,263.48

Finding the Fourth Proportional to 18,920.24, 26,109.31 and 11,263.48

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Solution

The fourth proportional to 18,920.24, 26,109.31 and 11,263.48 is: 15,543.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,920.24 : 26,109.31 = 11,263.48 : x
  2. Step 2: Convert to fraction form
    18,920.24/26,109.31 = 11,263.48/x
  3. Step 3: Cross multiply
    18,920.24x = 26,109.31 × 11,263.48
  4. Step 4: Simplify right side
    18,920.24x = 294,081,691.00
  5. Step 5: Solve for x
    x = 294,081,691.00/18,920.24
  6. Step 6: Final answer
    x = 15,543.23

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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.