Home / 15,807.13-23,711.30-4,120.45

Finding the Fourth Proportional to 15,807.13, 23,711.30 and 4,120.45

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Solution

The fourth proportional to 15,807.13, 23,711.30 and 4,120.45 is: 6,180.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,807.13 : 23,711.30 = 4,120.45 : x
  2. Step 2: Convert to fraction form
    15,807.13/23,711.30 = 4,120.45/x
  3. Step 3: Cross multiply
    15,807.13x = 23,711.30 × 4,120.45
  4. Step 4: Simplify right side
    15,807.13x = 97,701,226.09
  5. Step 5: Solve for x
    x = 97,701,226.09/15,807.13
  6. Step 6: Final answer
    x = 6,180.83

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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.