Home / 19,154.73-28,670.65-10,247.78

Finding the Fourth Proportional to 19,154.73, 28,670.65 and 10,247.78

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Solution

The fourth proportional to 19,154.73, 28,670.65 and 10,247.78 is: 15,338.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,154.73 : 28,670.65 = 10,247.78 : x
  2. Step 2: Convert to fraction form
    19,154.73/28,670.65 = 10,247.78/x
  3. Step 3: Cross multiply
    19,154.73x = 28,670.65 × 10,247.78
  4. Step 4: Simplify right side
    19,154.73x = 293,810,513.66
  5. Step 5: Solve for x
    x = 293,810,513.66/19,154.73
  6. Step 6: Final answer
    x = 15,338.80

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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.