Home / 13,656.08-18,833.65-9,414.05

Finding the Fourth Proportional to 13,656.08, 18,833.65 and 9,414.05

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Solution

The fourth proportional to 13,656.08, 18,833.65 and 9,414.05 is: 12,983.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,656.08 : 18,833.65 = 9,414.05 : x
  2. Step 2: Convert to fraction form
    13,656.08/18,833.65 = 9,414.05/x
  3. Step 3: Cross multiply
    13,656.08x = 18,833.65 × 9,414.05
  4. Step 4: Simplify right side
    13,656.08x = 177,300,805.08
  5. Step 5: Solve for x
    x = 177,300,805.08/13,656.08
  6. Step 6: Final answer
    x = 12,983.28

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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.