Home / 6,345.60-9,518-1,962.72

Finding the Fourth Proportional to 6,345.60, 9,518 and 1,962.72

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Solution

The fourth proportional to 6,345.60, 9,518 and 1,962.72 is: 2,943.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,345.60 : 9,518 = 1,962.72 : x
  2. Step 2: Convert to fraction form
    6,345.60/9,518 = 1,962.72/x
  3. Step 3: Cross multiply
    6,345.60x = 9,518 × 1,962.72
  4. Step 4: Simplify right side
    6,345.60x = 18,681,168.96
  5. Step 5: Solve for x
    x = 18,681,168.96/6,345.60
  6. Step 6: Final answer
    x = 2,943.96

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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.