Home / 19,488.84-26,895.90-11,105.40

Finding the Fourth Proportional to 19,488.84, 26,895.90 and 11,105.40

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Solution

The fourth proportional to 19,488.84, 26,895.90 and 11,105.40 is: 15,326.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,488.84 : 26,895.90 = 11,105.40 : x
  2. Step 2: Convert to fraction form
    19,488.84/26,895.90 = 11,105.40/x
  3. Step 3: Cross multiply
    19,488.84x = 26,895.90 × 11,105.40
  4. Step 4: Simplify right side
    19,488.84x = 298,689,727.86
  5. Step 5: Solve for x
    x = 298,689,727.86/19,488.84
  6. Step 6: Final answer
    x = 15,326.19

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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.