Home / 7,012.24-9,672.66-4,178.56

Finding the Fourth Proportional to 7,012.24, 9,672.66 and 4,178.56

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Solution

The fourth proportional to 7,012.24, 9,672.66 and 4,178.56 is: 5,763.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,012.24 : 9,672.66 = 4,178.56 : x
  2. Step 2: Convert to fraction form
    7,012.24/9,672.66 = 4,178.56/x
  3. Step 3: Cross multiply
    7,012.24x = 9,672.66 × 4,178.56
  4. Step 4: Simplify right side
    7,012.24x = 40,417,790.17
  5. Step 5: Solve for x
    x = 40,417,790.17/7,012.24
  6. Step 6: Final answer
    x = 5,763.89

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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.