Home / 13,113.34-18,093.62-8,865.06

Finding the Fourth Proportional to 13,113.34, 18,093.62 and 8,865.06

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Solution

The fourth proportional to 13,113.34, 18,093.62 and 8,865.06 is: 12,231.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,113.34 : 18,093.62 = 8,865.06 : x
  2. Step 2: Convert to fraction form
    13,113.34/18,093.62 = 8,865.06/x
  3. Step 3: Cross multiply
    13,113.34x = 18,093.62 × 8,865.06
  4. Step 4: Simplify right side
    13,113.34x = 160,401,026.92
  5. Step 5: Solve for x
    x = 160,401,026.92/13,113.34
  6. Step 6: Final answer
    x = 12,231.90

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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.