Home / 13,589.13-18,745.04-8,545.35

Finding the Fourth Proportional to 13,589.13, 18,745.04 and 8,545.35

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Solution

The fourth proportional to 13,589.13, 18,745.04 and 8,545.35 is: 11,787.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,589.13 : 18,745.04 = 8,545.35 : x
  2. Step 2: Convert to fraction form
    13,589.13/18,745.04 = 8,545.35/x
  3. Step 3: Cross multiply
    13,589.13x = 18,745.04 × 8,545.35
  4. Step 4: Simplify right side
    13,589.13x = 160,182,884.84
  5. Step 5: Solve for x
    x = 160,182,884.84/13,589.13
  6. Step 6: Final answer
    x = 11,787.57

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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.