Home / 13,602.12-18,771.42-8,293.20

Finding the Fourth Proportional to 13,602.12, 18,771.42 and 8,293.20

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Solution

The fourth proportional to 13,602.12, 18,771.42 and 8,293.20 is: 11,444.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,602.12 : 18,771.42 = 8,293.20 : x
  2. Step 2: Convert to fraction form
    13,602.12/18,771.42 = 8,293.20/x
  3. Step 3: Cross multiply
    13,602.12x = 18,771.42 × 8,293.20
  4. Step 4: Simplify right side
    13,602.12x = 155,675,140.34
  5. Step 5: Solve for x
    x = 155,675,140.34/13,602.12
  6. Step 6: Final answer
    x = 11,444.92

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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.