Home / 14,089.33-19,438.55-8,120.87

Finding the Fourth Proportional to 14,089.33, 19,438.55 and 8,120.87

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Solution

The fourth proportional to 14,089.33, 19,438.55 and 8,120.87 is: 11,204.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,089.33 : 19,438.55 = 8,120.87 : x
  2. Step 2: Convert to fraction form
    14,089.33/19,438.55 = 8,120.87/x
  3. Step 3: Cross multiply
    14,089.33x = 19,438.55 × 8,120.87
  4. Step 4: Simplify right side
    14,089.33x = 157,858,058.11
  5. Step 5: Solve for x
    x = 157,858,058.11/14,089.33
  6. Step 6: Final answer
    x = 11,204.08

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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.