Home / 13,667.25-18,862.23-8,365.60

Finding the Fourth Proportional to 13,667.25, 18,862.23 and 8,365.60

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Solution

The fourth proportional to 13,667.25, 18,862.23 and 8,365.60 is: 11,545.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,667.25 : 18,862.23 = 8,365.60 : x
  2. Step 2: Convert to fraction form
    13,667.25/18,862.23 = 8,365.60/x
  3. Step 3: Cross multiply
    13,667.25x = 18,862.23 × 8,365.60
  4. Step 4: Simplify right side
    13,667.25x = 157,793,871.29
  5. Step 5: Solve for x
    x = 157,793,871.29/13,667.25
  6. Step 6: Final answer
    x = 11,545.40

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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.