Home / 7,178.05-9,901.23-4,936.04

Finding the Fourth Proportional to 7,178.05, 9,901.23 and 4,936.04

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Solution

The fourth proportional to 7,178.05, 9,901.23 and 4,936.04 is: 6,808.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.05 : 9,901.23 = 4,936.04 : x
  2. Step 2: Convert to fraction form
    7,178.05/9,901.23 = 4,936.04/x
  3. Step 3: Cross multiply
    7,178.05x = 9,901.23 × 4,936.04
  4. Step 4: Simplify right side
    7,178.05x = 48,872,817.82
  5. Step 5: Solve for x
    x = 48,872,817.82/7,178.05
  6. Step 6: Final answer
    x = 6,808.65

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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.