Home / 18,860.28-26,028.39-10,476.78

Finding the Fourth Proportional to 18,860.28, 26,028.39 and 10,476.78

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Solution

The fourth proportional to 18,860.28, 26,028.39 and 10,476.78 is: 14,458.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,860.28 : 26,028.39 = 10,476.78 : x
  2. Step 2: Convert to fraction form
    18,860.28/26,028.39 = 10,476.78/x
  3. Step 3: Cross multiply
    18,860.28x = 26,028.39 × 10,476.78
  4. Step 4: Simplify right side
    18,860.28x = 272,693,715.78
  5. Step 5: Solve for x
    x = 272,693,715.78/18,860.28
  6. Step 6: Final answer
    x = 14,458.62

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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.