Home / 8,943.12-13,407.84-3,394.80

Finding the Fourth Proportional to 8,943.12, 13,407.84 and 3,394.80

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Solution

The fourth proportional to 8,943.12, 13,407.84 and 3,394.80 is: 5,089.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,943.12 : 13,407.84 = 3,394.80 : x
  2. Step 2: Convert to fraction form
    8,943.12/13,407.84 = 3,394.80/x
  3. Step 3: Cross multiply
    8,943.12x = 13,407.84 × 3,394.80
  4. Step 4: Simplify right side
    8,943.12x = 45,516,935.23
  5. Step 5: Solve for x
    x = 45,516,935.23/8,943.12
  6. Step 6: Final answer
    x = 5,089.60

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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.