Home / 15,434.73-21,299.86-8,361.17

Finding the Fourth Proportional to 15,434.73, 21,299.86 and 8,361.17

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Solution

The fourth proportional to 15,434.73, 21,299.86 and 8,361.17 is: 11,538.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,434.73 : 21,299.86 = 8,361.17 : x
  2. Step 2: Convert to fraction form
    15,434.73/21,299.86 = 8,361.17/x
  3. Step 3: Cross multiply
    15,434.73x = 21,299.86 × 8,361.17
  4. Step 4: Simplify right side
    15,434.73x = 178,091,602.13
  5. Step 5: Solve for x
    x = 178,091,602.13/15,434.73
  6. Step 6: Final answer
    x = 11,538.37

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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.