Home / 8,342.80-12,513.93-3,411.12

Finding the Fourth Proportional to 8,342.80, 12,513.93 and 3,411.12

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Solution

The fourth proportional to 8,342.80, 12,513.93 and 3,411.12 is: 5,116.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,342.80 : 12,513.93 = 3,411.12 : x
  2. Step 2: Convert to fraction form
    8,342.80/12,513.93 = 3,411.12/x
  3. Step 3: Cross multiply
    8,342.80x = 12,513.93 × 3,411.12
  4. Step 4: Simplify right side
    8,342.80x = 42,686,516.90
  5. Step 5: Solve for x
    x = 42,686,516.90/8,342.80
  6. Step 6: Final answer
    x = 5,116.57

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1.5x scale

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.