Home / 15,552.28-21,455.38-9,883.99

Finding the Fourth Proportional to 15,552.28, 21,455.38 and 9,883.99

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Solution

The fourth proportional to 15,552.28, 21,455.38 and 9,883.99 is: 13,635.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,552.28 : 21,455.38 = 9,883.99 : x
  2. Step 2: Convert to fraction form
    15,552.28/21,455.38 = 9,883.99/x
  3. Step 3: Cross multiply
    15,552.28x = 21,455.38 × 9,883.99
  4. Step 4: Simplify right side
    15,552.28x = 212,064,761.37
  5. Step 5: Solve for x
    x = 212,064,761.37/15,552.28
  6. Step 6: Final answer
    x = 13,635.61

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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.