Home / 15,723.63-21,698.69-8,650.04

Finding the Fourth Proportional to 15,723.63, 21,698.69 and 8,650.04

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Solution

The fourth proportional to 15,723.63, 21,698.69 and 8,650.04 is: 11,937.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,723.63 : 21,698.69 = 8,650.04 : x
  2. Step 2: Convert to fraction form
    15,723.63/21,698.69 = 8,650.04/x
  3. Step 3: Cross multiply
    15,723.63x = 21,698.69 × 8,650.04
  4. Step 4: Simplify right side
    15,723.63x = 187,694,384.70
  5. Step 5: Solve for x
    x = 187,694,384.70/15,723.63
  6. Step 6: Final answer
    x = 11,937.09

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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.