Home / 13,114.11-18,104.18-8,887.50

Finding the Fourth Proportional to 13,114.11, 18,104.18 and 8,887.50

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Solution

The fourth proportional to 13,114.11, 18,104.18 and 8,887.50 is: 12,269.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,114.11 : 18,104.18 = 8,887.50 : x
  2. Step 2: Convert to fraction form
    13,114.11/18,104.18 = 8,887.50/x
  3. Step 3: Cross multiply
    13,114.11x = 18,104.18 × 8,887.50
  4. Step 4: Simplify right side
    13,114.11x = 160,900,899.75
  5. Step 5: Solve for x
    x = 160,900,899.75/13,114.11
  6. Step 6: Final answer
    x = 12,269.30

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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.