Home / 10,345.05-15,508.80-3,767.40

Finding the Fourth Proportional to 10,345.05, 15,508.80 and 3,767.40

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Solution

The fourth proportional to 10,345.05, 15,508.80 and 3,767.40 is: 5,647.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,345.05 : 15,508.80 = 3,767.40 : x
  2. Step 2: Convert to fraction form
    10,345.05/15,508.80 = 3,767.40/x
  3. Step 3: Cross multiply
    10,345.05x = 15,508.80 × 3,767.40
  4. Step 4: Simplify right side
    10,345.05x = 58,427,853.12
  5. Step 5: Solve for x
    x = 58,427,853.12/10,345.05
  6. Step 6: Final answer
    x = 5,647.90

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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.