Home / 13,625.52-18,803.40-8,247.12

Finding the Fourth Proportional to 13,625.52, 18,803.40 and 8,247.12

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Solution

The fourth proportional to 13,625.52, 18,803.40 and 8,247.12 is: 11,381.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,625.52 : 18,803.40 = 8,247.12 : x
  2. Step 2: Convert to fraction form
    13,625.52/18,803.40 = 8,247.12/x
  3. Step 3: Cross multiply
    13,625.52x = 18,803.40 × 8,247.12
  4. Step 4: Simplify right side
    13,625.52x = 155,073,896.21
  5. Step 5: Solve for x
    x = 155,073,896.21/13,625.52
  6. Step 6: Final answer
    x = 11,381.14

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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.