Home / 19,006.43-28,510.82-7,319.66

Finding the Fourth Proportional to 19,006.43, 28,510.82 and 7,319.66

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Solution

The fourth proportional to 19,006.43, 28,510.82 and 7,319.66 is: 10,979.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,006.43 : 28,510.82 = 7,319.66 : x
  2. Step 2: Convert to fraction form
    19,006.43/28,510.82 = 7,319.66/x
  3. Step 3: Cross multiply
    19,006.43x = 28,510.82 × 7,319.66
  4. Step 4: Simplify right side
    19,006.43x = 208,689,472.12
  5. Step 5: Solve for x
    x = 208,689,472.12/19,006.43
  6. Step 6: Final answer
    x = 10,979.94

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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.