Home / 6,624.45-9,142.47-3,972.51

Finding the Fourth Proportional to 6,624.45, 9,142.47 and 3,972.51

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Solution

The fourth proportional to 6,624.45, 9,142.47 and 3,972.51 is: 5,482.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,624.45 : 9,142.47 = 3,972.51 : x
  2. Step 2: Convert to fraction form
    6,624.45/9,142.47 = 3,972.51/x
  3. Step 3: Cross multiply
    6,624.45x = 9,142.47 × 3,972.51
  4. Step 4: Simplify right side
    6,624.45x = 36,318,553.50
  5. Step 5: Solve for x
    x = 36,318,553.50/6,624.45
  6. Step 6: Final answer
    x = 5,482.50

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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.