Home / 14,725.08-20,310.26-9,687.69

Finding the Fourth Proportional to 14,725.08, 20,310.26 and 9,687.69

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Solution

The fourth proportional to 14,725.08, 20,310.26 and 9,687.69 is: 13,362.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,725.08 : 20,310.26 = 9,687.69 : x
  2. Step 2: Convert to fraction form
    14,725.08/20,310.26 = 9,687.69/x
  3. Step 3: Cross multiply
    14,725.08x = 20,310.26 × 9,687.69
  4. Step 4: Simplify right side
    14,725.08x = 196,759,502.70
  5. Step 5: Solve for x
    x = 196,759,502.70/14,725.08
  6. Step 6: Final answer
    x = 13,362.20

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Double scale
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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.