Home / 13,089.45-19,625.54-5,290.41

Finding the Fourth Proportional to 13,089.45, 19,625.54 and 5,290.41

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Solution

The fourth proportional to 13,089.45, 19,625.54 and 5,290.41 is: 7,932.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,089.45 : 19,625.54 = 5,290.41 : x
  2. Step 2: Convert to fraction form
    13,089.45/19,625.54 = 5,290.41/x
  3. Step 3: Cross multiply
    13,089.45x = 19,625.54 × 5,290.41
  4. Step 4: Simplify right side
    13,089.45x = 103,827,126.62
  5. Step 5: Solve for x
    x = 103,827,126.62/13,089.45
  6. Step 6: Final answer
    x = 7,932.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.