Home / 13,672.02-18,856.80-8,824.98

Finding the Fourth Proportional to 13,672.02, 18,856.80 and 8,824.98

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Solution

The fourth proportional to 13,672.02, 18,856.80 and 8,824.98 is: 12,171.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,672.02 : 18,856.80 = 8,824.98 : x
  2. Step 2: Convert to fraction form
    13,672.02/18,856.80 = 8,824.98/x
  3. Step 3: Cross multiply
    13,672.02x = 18,856.80 × 8,824.98
  4. Step 4: Simplify right side
    13,672.02x = 166,410,882.86
  5. Step 5: Solve for x
    x = 166,410,882.86/13,672.02
  6. Step 6: Final answer
    x = 12,171.64

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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.