Home / 15,750.60-21,735.59-8,677.28

Finding the Fourth Proportional to 15,750.60, 21,735.59 and 8,677.28

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Solution

The fourth proportional to 15,750.60, 21,735.59 and 8,677.28 is: 11,974.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,750.60 : 21,735.59 = 8,677.28 : x
  2. Step 2: Convert to fraction form
    15,750.60/21,735.59 = 8,677.28/x
  3. Step 3: Cross multiply
    15,750.60x = 21,735.59 × 8,677.28
  4. Step 4: Simplify right side
    15,750.60x = 188,605,648.33
  5. Step 5: Solve for x
    x = 188,605,648.33/15,750.60
  6. Step 6: Final answer
    x = 11,974.51

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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.