Home / 19,087.10-26,340.18-11,127.78

Finding the Fourth Proportional to 19,087.10, 26,340.18 and 11,127.78

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Solution

The fourth proportional to 19,087.10, 26,340.18 and 11,127.78 is: 15,356.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,087.10 : 26,340.18 = 11,127.78 : x
  2. Step 2: Convert to fraction form
    19,087.10/26,340.18 = 11,127.78/x
  3. Step 3: Cross multiply
    19,087.10x = 26,340.18 × 11,127.78
  4. Step 4: Simplify right side
    19,087.10x = 293,107,728.20
  5. Step 5: Solve for x
    x = 293,107,728.20/19,087.10
  6. Step 6: Final answer
    x = 15,356.33

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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.