Home / 19,107.69-26,367.15-11,148.90

Finding the Fourth Proportional to 19,107.69, 26,367.15 and 11,148.90

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Solution

The fourth proportional to 19,107.69, 26,367.15 and 11,148.90 is: 15,384.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,107.69 : 26,367.15 = 11,148.90 : x
  2. Step 2: Convert to fraction form
    19,107.69/26,367.15 = 11,148.90/x
  3. Step 3: Cross multiply
    19,107.69x = 26,367.15 × 11,148.90
  4. Step 4: Simplify right side
    19,107.69x = 293,964,718.64
  5. Step 5: Solve for x
    x = 293,964,718.64/19,107.69
  6. Step 6: Final answer
    x = 15,384.63

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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.