Home / 6,513.11-9,769.53-1,582.78

Finding the Fourth Proportional to 6,513.11, 9,769.53 and 1,582.78

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Solution

The fourth proportional to 6,513.11, 9,769.53 and 1,582.78 is: 2,374.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,513.11 : 9,769.53 = 1,582.78 : x
  2. Step 2: Convert to fraction form
    6,513.11/9,769.53 = 1,582.78/x
  3. Step 3: Cross multiply
    6,513.11x = 9,769.53 × 1,582.78
  4. Step 4: Simplify right side
    6,513.11x = 15,462,959.93
  5. Step 5: Solve for x
    x = 15,462,959.93/6,513.11
  6. Step 6: Final answer
    x = 2,374.13

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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.