Home / 13,417.50-18,516.96-8,113.62

Finding the Fourth Proportional to 13,417.50, 18,516.96 and 8,113.62

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Solution

The fourth proportional to 13,417.50, 18,516.96 and 8,113.62 is: 11,197.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.50 : 18,516.96 = 8,113.62 : x
  2. Step 2: Convert to fraction form
    13,417.50/18,516.96 = 8,113.62/x
  3. Step 3: Cross multiply
    13,417.50x = 18,516.96 × 8,113.62
  4. Step 4: Simplify right side
    13,417.50x = 150,239,577.00
  5. Step 5: Solve for x
    x = 150,239,577.00/13,417.50
  6. Step 6: Final answer
    x = 11,197.29

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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.