Home / 15,863.72-21,889.04-10,196.55

Finding the Fourth Proportional to 15,863.72, 21,889.04 and 10,196.55

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Solution

The fourth proportional to 15,863.72, 21,889.04 and 10,196.55 is: 14,069.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,863.72 : 21,889.04 = 10,196.55 : x
  2. Step 2: Convert to fraction form
    15,863.72/21,889.04 = 10,196.55/x
  3. Step 3: Cross multiply
    15,863.72x = 21,889.04 × 10,196.55
  4. Step 4: Simplify right side
    15,863.72x = 223,192,639.83
  5. Step 5: Solve for x
    x = 223,192,639.83/15,863.72
  6. Step 6: Final answer
    x = 14,069.38

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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.