Home / 13,606.18-18,784.34-9,067.66

Finding the Fourth Proportional to 13,606.18, 18,784.34 and 9,067.66

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Solution

The fourth proportional to 13,606.18, 18,784.34 and 9,067.66 is: 12,518.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,606.18 : 18,784.34 = 9,067.66 : x
  2. Step 2: Convert to fraction form
    13,606.18/18,784.34 = 9,067.66/x
  3. Step 3: Cross multiply
    13,606.18x = 18,784.34 × 9,067.66
  4. Step 4: Simplify right side
    13,606.18x = 170,329,985.78
  5. Step 5: Solve for x
    x = 170,329,985.78/13,606.18
  6. Step 6: Final answer
    x = 12,518.57

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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.