Home / 19,288.68-28,909.15-11,383.18

Finding the Fourth Proportional to 19,288.68, 28,909.15 and 11,383.18

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Solution

The fourth proportional to 19,288.68, 28,909.15 and 11,383.18 is: 17,060.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,288.68 : 28,909.15 = 11,383.18 : x
  2. Step 2: Convert to fraction form
    19,288.68/28,909.15 = 11,383.18/x
  3. Step 3: Cross multiply
    19,288.68x = 28,909.15 × 11,383.18
  4. Step 4: Simplify right side
    19,288.68x = 329,077,957.37
  5. Step 5: Solve for x
    x = 329,077,957.37/19,288.68
  6. Step 6: Final answer
    x = 17,060.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.