Home / 13,667.80-18,854.58-9,192.04

Finding the Fourth Proportional to 13,667.80, 18,854.58 and 9,192.04

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Solution

The fourth proportional to 13,667.80, 18,854.58 and 9,192.04 is: 12,680.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,667.80 : 18,854.58 = 9,192.04 : x
  2. Step 2: Convert to fraction form
    13,667.80/18,854.58 = 9,192.04/x
  3. Step 3: Cross multiply
    13,667.80x = 18,854.58 × 9,192.04
  4. Step 4: Simplify right side
    13,667.80x = 173,312,053.54
  5. Step 5: Solve for x
    x = 173,312,053.54/13,667.80
  6. Step 6: Final answer
    x = 12,680.32

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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.