Home / 15,366.43-21,206.73-8,561.52

Finding the Fourth Proportional to 15,366.43, 21,206.73 and 8,561.52

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Solution

The fourth proportional to 15,366.43, 21,206.73 and 8,561.52 is: 11,815.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,366.43 : 21,206.73 = 8,561.52 : x
  2. Step 2: Convert to fraction form
    15,366.43/21,206.73 = 8,561.52/x
  3. Step 3: Cross multiply
    15,366.43x = 21,206.73 × 8,561.52
  4. Step 4: Simplify right side
    15,366.43x = 181,561,826.98
  5. Step 5: Solve for x
    x = 181,561,826.98/15,366.43
  6. Step 6: Final answer
    x = 11,815.48

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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.