Home / 19,111.20-26,368.84-11,148.88

Finding the Fourth Proportional to 19,111.20, 26,368.84 and 11,148.88

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Solution

The fourth proportional to 19,111.20, 26,368.84 and 11,148.88 is: 15,382.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,111.20 : 26,368.84 = 11,148.88 : x
  2. Step 2: Convert to fraction form
    19,111.20/26,368.84 = 11,148.88/x
  3. Step 3: Cross multiply
    19,111.20x = 26,368.84 × 11,148.88
  4. Step 4: Simplify right side
    19,111.20x = 293,983,032.90
  5. Step 5: Solve for x
    x = 293,983,032.90/19,111.20
  6. Step 6: Final answer
    x = 15,382.76

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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.