Home / 13,135.04-18,124.68-8,667.44

Finding the Fourth Proportional to 13,135.04, 18,124.68 and 8,667.44

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Solution

The fourth proportional to 13,135.04, 18,124.68 and 8,667.44 is: 11,959.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135.04 : 18,124.68 = 8,667.44 : x
  2. Step 2: Convert to fraction form
    13,135.04/18,124.68 = 8,667.44/x
  3. Step 3: Cross multiply
    13,135.04x = 18,124.68 × 8,667.44
  4. Step 4: Simplify right side
    13,135.04x = 157,094,576.42
  5. Step 5: Solve for x
    x = 157,094,576.42/13,135.04
  6. Step 6: Final answer
    x = 11,959.96

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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.