Home / 9,374.24-12,936.84-5,395.36

Finding the Fourth Proportional to 9,374.24, 12,936.84 and 5,395.36

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Solution

The fourth proportional to 9,374.24, 12,936.84 and 5,395.36 is: 7,445.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,374.24 : 12,936.84 = 5,395.36 : x
  2. Step 2: Convert to fraction form
    9,374.24/12,936.84 = 5,395.36/x
  3. Step 3: Cross multiply
    9,374.24x = 12,936.84 × 5,395.36
  4. Step 4: Simplify right side
    9,374.24x = 69,798,909.06
  5. Step 5: Solve for x
    x = 69,798,909.06/9,374.24
  6. Step 6: Final answer
    x = 7,445.82

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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.