Home / 18,999.36-26,219.43-11,038.68

Finding the Fourth Proportional to 18,999.36, 26,219.43 and 11,038.68

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Solution

The fourth proportional to 18,999.36, 26,219.43 and 11,038.68 is: 15,233.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,999.36 : 26,219.43 = 11,038.68 : x
  2. Step 2: Convert to fraction form
    18,999.36/26,219.43 = 11,038.68/x
  3. Step 3: Cross multiply
    18,999.36x = 26,219.43 × 11,038.68
  4. Step 4: Simplify right side
    18,999.36x = 289,427,897.55
  5. Step 5: Solve for x
    x = 289,427,897.55/18,999.36
  6. Step 6: Final answer
    x = 15,233.56

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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.