Home / 13,723.91-18,919.59-9,743.57

Finding the Fourth Proportional to 13,723.91, 18,919.59 and 9,743.57

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Solution

The fourth proportional to 13,723.91, 18,919.59 and 9,743.57 is: 13,432.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.91 : 18,919.59 = 9,743.57 : x
  2. Step 2: Convert to fraction form
    13,723.91/18,919.59 = 9,743.57/x
  3. Step 3: Cross multiply
    13,723.91x = 18,919.59 × 9,743.57
  4. Step 4: Simplify right side
    13,723.91x = 184,344,254.94
  5. Step 5: Solve for x
    x = 184,344,254.94/13,723.91
  6. Step 6: Final answer
    x = 13,432.35

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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.