Home / 8,210.93-12,309.10-3,822.35

Finding the Fourth Proportional to 8,210.93, 12,309.10 and 3,822.35

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Solution

The fourth proportional to 8,210.93, 12,309.10 and 3,822.35 is: 5,730.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,210.93 : 12,309.10 = 3,822.35 : x
  2. Step 2: Convert to fraction form
    8,210.93/12,309.10 = 3,822.35/x
  3. Step 3: Cross multiply
    8,210.93x = 12,309.10 × 3,822.35
  4. Step 4: Simplify right side
    8,210.93x = 47,049,617.28
  5. Step 5: Solve for x
    x = 47,049,617.28/8,210.93
  6. Step 6: Final answer
    x = 5,730.12

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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.