Home / 8,943.14-12,342.68-5,406.35

Finding the Fourth Proportional to 8,943.14, 12,342.68 and 5,406.35

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Solution

The fourth proportional to 8,943.14, 12,342.68 and 5,406.35 is: 7,461.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,943.14 : 12,342.68 = 5,406.35 : x
  2. Step 2: Convert to fraction form
    8,943.14/12,342.68 = 5,406.35/x
  3. Step 3: Cross multiply
    8,943.14x = 12,342.68 × 5,406.35
  4. Step 4: Simplify right side
    8,943.14x = 66,728,759.27
  5. Step 5: Solve for x
    x = 66,728,759.27/8,943.14
  6. Step 6: Final answer
    x = 7,461.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.