Home / 13,656.41-18,851.66-9,182.75

Finding the Fourth Proportional to 13,656.41, 18,851.66 and 9,182.75

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Solution

The fourth proportional to 13,656.41, 18,851.66 and 9,182.75 is: 12,676.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,656.41 : 18,851.66 = 9,182.75 : x
  2. Step 2: Convert to fraction form
    13,656.41/18,851.66 = 9,182.75/x
  3. Step 3: Cross multiply
    13,656.41x = 18,851.66 × 9,182.75
  4. Step 4: Simplify right side
    13,656.41x = 173,110,080.87
  5. Step 5: Solve for x
    x = 173,110,080.87/13,656.41
  6. Step 6: Final answer
    x = 12,676.10

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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.