Home / 15,687.05-23,533.49-5,157.66

Finding the Fourth Proportional to 15,687.05, 23,533.49 and 5,157.66

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Solution

The fourth proportional to 15,687.05, 23,533.49 and 5,157.66 is: 7,737.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,687.05 : 23,533.49 = 5,157.66 : x
  2. Step 2: Convert to fraction form
    15,687.05/23,533.49 = 5,157.66/x
  3. Step 3: Cross multiply
    15,687.05x = 23,533.49 × 5,157.66
  4. Step 4: Simplify right side
    15,687.05x = 121,377,740.03
  5. Step 5: Solve for x
    x = 121,377,740.03/15,687.05
  6. Step 6: Final answer
    x = 7,737.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.