Home / 18,983.70-26,200.27-11,030.31

Finding the Fourth Proportional to 18,983.70, 26,200.27 and 11,030.31

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Solution

The fourth proportional to 18,983.70, 26,200.27 and 11,030.31 is: 15,223.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,983.70 : 26,200.27 = 11,030.31 : x
  2. Step 2: Convert to fraction form
    18,983.70/26,200.27 = 11,030.31/x
  3. Step 3: Cross multiply
    18,983.70x = 26,200.27 × 11,030.31
  4. Step 4: Simplify right side
    18,983.70x = 288,997,100.18
  5. Step 5: Solve for x
    x = 288,997,100.18/18,983.70
  6. Step 6: Final answer
    x = 15,223.43

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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.