Home / 18,868.33-26,038.83-11,315.89

Finding the Fourth Proportional to 18,868.33, 26,038.83 and 11,315.89

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Solution

The fourth proportional to 18,868.33, 26,038.83 and 11,315.89 is: 15,616.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,868.33 : 26,038.83 = 11,315.89 : x
  2. Step 2: Convert to fraction form
    18,868.33/26,038.83 = 11,315.89/x
  3. Step 3: Cross multiply
    18,868.33x = 26,038.83 × 11,315.89
  4. Step 4: Simplify right side
    18,868.33x = 294,652,536.01
  5. Step 5: Solve for x
    x = 294,652,536.01/18,868.33
  6. Step 6: Final answer
    x = 15,616.25

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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.