Home / 18,789.24-25,931.60-10,725.72

Finding the Fourth Proportional to 18,789.24, 25,931.60 and 10,725.72

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Solution

The fourth proportional to 18,789.24, 25,931.60 and 10,725.72 is: 14,802.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789.24 : 25,931.60 = 10,725.72 : x
  2. Step 2: Convert to fraction form
    18,789.24/25,931.60 = 10,725.72/x
  3. Step 3: Cross multiply
    18,789.24x = 25,931.60 × 10,725.72
  4. Step 4: Simplify right side
    18,789.24x = 278,135,080.75
  5. Step 5: Solve for x
    x = 278,135,080.75/18,789.24
  6. Step 6: Final answer
    x = 14,802.89

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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.