Home / 15,815.70-23,723.64-4,129.02

Finding the Fourth Proportional to 15,815.70, 23,723.64 and 4,129.02

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Solution

The fourth proportional to 15,815.70, 23,723.64 and 4,129.02 is: 6,193.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,815.70 : 23,723.64 = 4,129.02 : x
  2. Step 2: Convert to fraction form
    15,815.70/23,723.64 = 4,129.02/x
  3. Step 3: Cross multiply
    15,815.70x = 23,723.64 × 4,129.02
  4. Step 4: Simplify right side
    15,815.70x = 97,955,384.03
  5. Step 5: Solve for x
    x = 97,955,384.03/15,815.70
  6. Step 6: Final answer
    x = 6,193.55

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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.