Home / 8,417.49-12,628.86-3,489.45

Finding the Fourth Proportional to 8,417.49, 12,628.86 and 3,489.45

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Solution

The fourth proportional to 8,417.49, 12,628.86 and 3,489.45 is: 5,235.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,417.49 : 12,628.86 = 3,489.45 : x
  2. Step 2: Convert to fraction form
    8,417.49/12,628.86 = 3,489.45/x
  3. Step 3: Cross multiply
    8,417.49x = 12,628.86 × 3,489.45
  4. Step 4: Simplify right side
    8,417.49x = 44,067,775.53
  5. Step 5: Solve for x
    x = 44,067,775.53/8,417.49
  6. Step 6: Final answer
    x = 5,235.26

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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.