Home / 11,178.04-15,427.92-6,463.84

Finding the Fourth Proportional to 11,178.04, 15,427.92 and 6,463.84

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Solution

The fourth proportional to 11,178.04, 15,427.92 and 6,463.84 is: 8,921.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.04 : 15,427.92 = 6,463.84 : x
  2. Step 2: Convert to fraction form
    11,178.04/15,427.92 = 6,463.84/x
  3. Step 3: Cross multiply
    11,178.04x = 15,427.92 × 6,463.84
  4. Step 4: Simplify right side
    11,178.04x = 99,723,606.41
  5. Step 5: Solve for x
    x = 99,723,606.41/11,178.04
  6. Step 6: Final answer
    x = 8,921.39

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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.