Home / 15,366.15-21,207.30-8,653.09

Finding the Fourth Proportional to 15,366.15, 21,207.30 and 8,653.09

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Solution

The fourth proportional to 15,366.15, 21,207.30 and 8,653.09 is: 11,942.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,366.15 : 21,207.30 = 8,653.09 : x
  2. Step 2: Convert to fraction form
    15,366.15/21,207.30 = 8,653.09/x
  3. Step 3: Cross multiply
    15,366.15x = 21,207.30 × 8,653.09
  4. Step 4: Simplify right side
    15,366.15x = 183,508,569.52
  5. Step 5: Solve for x
    x = 183,508,569.52/15,366.15
  6. Step 6: Final answer
    x = 11,942.39

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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.