Home / 14,728.08-20,322.48-8,439.24

Finding the Fourth Proportional to 14,728.08, 20,322.48 and 8,439.24

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Solution

The fourth proportional to 14,728.08, 20,322.48 and 8,439.24 is: 11,644.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,728.08 : 20,322.48 = 8,439.24 : x
  2. Step 2: Convert to fraction form
    14,728.08/20,322.48 = 8,439.24/x
  3. Step 3: Cross multiply
    14,728.08x = 20,322.48 × 8,439.24
  4. Step 4: Simplify right side
    14,728.08x = 171,506,286.12
  5. Step 5: Solve for x
    x = 171,506,286.12/14,728.08
  6. Step 6: Final answer
    x = 11,644.85

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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.