Home / 9,384.15-12,950.45-5,351.56

Finding the Fourth Proportional to 9,384.15, 12,950.45 and 5,351.56

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Solution

The fourth proportional to 9,384.15, 12,950.45 and 5,351.56 is: 7,385.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,384.15 : 12,950.45 = 5,351.56 : x
  2. Step 2: Convert to fraction form
    9,384.15/12,950.45 = 5,351.56/x
  3. Step 3: Cross multiply
    9,384.15x = 12,950.45 × 5,351.56
  4. Step 4: Simplify right side
    9,384.15x = 69,305,110.20
  5. Step 5: Solve for x
    x = 69,305,110.20/9,384.15
  6. Step 6: Final answer
    x = 7,385.34

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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.