Home / 13,134.46-18,119.29-8,887.01

Finding the Fourth Proportional to 13,134.46, 18,119.29 and 8,887.01

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Solution

The fourth proportional to 13,134.46, 18,119.29 and 8,887.01 is: 12,259.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,134.46 : 18,119.29 = 8,887.01 : x
  2. Step 2: Convert to fraction form
    13,134.46/18,119.29 = 8,887.01/x
  3. Step 3: Cross multiply
    13,134.46x = 18,119.29 × 8,887.01
  4. Step 4: Simplify right side
    13,134.46x = 161,026,311.42
  5. Step 5: Solve for x
    x = 161,026,311.42/13,134.46
  6. Step 6: Final answer
    x = 12,259.83

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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.