Home / 15,825.33-21,838.77-8,751.60

Finding the Fourth Proportional to 15,825.33, 21,838.77 and 8,751.60

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Solution

The fourth proportional to 15,825.33, 21,838.77 and 8,751.60 is: 12,077.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,825.33 : 21,838.77 = 8,751.60 : x
  2. Step 2: Convert to fraction form
    15,825.33/21,838.77 = 8,751.60/x
  3. Step 3: Cross multiply
    15,825.33x = 21,838.77 × 8,751.60
  4. Step 4: Simplify right side
    15,825.33x = 191,124,179.53
  5. Step 5: Solve for x
    x = 191,124,179.53/15,825.33
  6. Step 6: Final answer
    x = 12,077.11

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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.