Home / 18,767.64-28,133.24-10,440.03

Finding the Fourth Proportional to 18,767.64, 28,133.24 and 10,440.03

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Solution

The fourth proportional to 18,767.64, 28,133.24 and 10,440.03 is: 15,649.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,767.64 : 28,133.24 = 10,440.03 : x
  2. Step 2: Convert to fraction form
    18,767.64/28,133.24 = 10,440.03/x
  3. Step 3: Cross multiply
    18,767.64x = 28,133.24 × 10,440.03
  4. Step 4: Simplify right side
    18,767.64x = 293,711,817.40
  5. Step 5: Solve for x
    x = 293,711,817.40/18,767.64
  6. Step 6: Final answer
    x = 15,649.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.