Home / 13,746.79-18,936.63-11,723.62

Finding the Fourth Proportional to 13,746.79, 18,936.63 and 11,723.62

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Solution

The fourth proportional to 13,746.79, 18,936.63 and 11,723.62 is: 16,149.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,746.79 : 18,936.63 = 11,723.62 : x
  2. Step 2: Convert to fraction form
    13,746.79/18,936.63 = 11,723.62/x
  3. Step 3: Cross multiply
    13,746.79x = 18,936.63 × 11,723.62
  4. Step 4: Simplify right side
    13,746.79x = 222,005,854.20
  5. Step 5: Solve for x
    x = 222,005,854.20/13,746.79
  6. Step 6: Final answer
    x = 16,149.65

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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.