Home / 15,840.24-21,859.30-8,766.51

Finding the Fourth Proportional to 15,840.24, 21,859.30 and 8,766.51

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Solution

The fourth proportional to 15,840.24, 21,859.30 and 8,766.51 is: 12,097.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,840.24 : 21,859.30 = 8,766.51 : x
  2. Step 2: Convert to fraction form
    15,840.24/21,859.30 = 8,766.51/x
  3. Step 3: Cross multiply
    15,840.24x = 21,859.30 × 8,766.51
  4. Step 4: Simplify right side
    15,840.24x = 191,629,772.04
  5. Step 5: Solve for x
    x = 191,629,772.04/15,840.24
  6. Step 6: Final answer
    x = 12,097.66

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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.