Home / 19,341.18-26,690.31-11,383.88

Finding the Fourth Proportional to 19,341.18, 26,690.31 and 11,383.88

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Solution

The fourth proportional to 19,341.18, 26,690.31 and 11,383.88 is: 15,709.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,341.18 : 26,690.31 = 11,383.88 : x
  2. Step 2: Convert to fraction form
    19,341.18/26,690.31 = 11,383.88/x
  3. Step 3: Cross multiply
    19,341.18x = 26,690.31 × 11,383.88
  4. Step 4: Simplify right side
    19,341.18x = 303,839,152.75
  5. Step 5: Solve for x
    x = 303,839,152.75/19,341.18
  6. Step 6: Final answer
    x = 15,709.44

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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.