Home / 13,589.91-18,745.43-9,818.61

Finding the Fourth Proportional to 13,589.91, 18,745.43 and 9,818.61

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Solution

The fourth proportional to 13,589.91, 18,745.43 and 9,818.61 is: 13,543.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,589.91 : 18,745.43 = 9,818.61 : x
  2. Step 2: Convert to fraction form
    13,589.91/18,745.43 = 9,818.61/x
  3. Step 3: Cross multiply
    13,589.91x = 18,745.43 × 9,818.61
  4. Step 4: Simplify right side
    13,589.91x = 184,054,017.36
  5. Step 5: Solve for x
    x = 184,054,017.36/13,589.91
  6. Step 6: Final answer
    x = 13,543.43

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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.