Home / 19,146.64-26,420.62-11,078.90

Finding the Fourth Proportional to 19,146.64, 26,420.62 and 11,078.90

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Solution

The fourth proportional to 19,146.64, 26,420.62 and 11,078.90 is: 15,287.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,146.64 : 26,420.62 = 11,078.90 : x
  2. Step 2: Convert to fraction form
    19,146.64/26,420.62 = 11,078.90/x
  3. Step 3: Cross multiply
    19,146.64x = 26,420.62 × 11,078.90
  4. Step 4: Simplify right side
    19,146.64x = 292,711,406.92
  5. Step 5: Solve for x
    x = 292,711,406.92/19,146.64
  6. Step 6: Final answer
    x = 15,287.87

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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.