Home / 8,345.10-12,518.31-2,798.46

Finding the Fourth Proportional to 8,345.10, 12,518.31 and 2,798.46

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Solution

The fourth proportional to 8,345.10, 12,518.31 and 2,798.46 is: 4,197.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,345.10 : 12,518.31 = 2,798.46 : x
  2. Step 2: Convert to fraction form
    8,345.10/12,518.31 = 2,798.46/x
  3. Step 3: Cross multiply
    8,345.10x = 12,518.31 × 2,798.46
  4. Step 4: Simplify right side
    8,345.10x = 35,031,989.80
  5. Step 5: Solve for x
    x = 35,031,989.80/8,345.10
  6. Step 6: Final answer
    x = 4,197.91

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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.