Home / 7,628.93-11,445.13-4,118.87

Finding the Fourth Proportional to 7,628.93, 11,445.13 and 4,118.87

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Solution

The fourth proportional to 7,628.93, 11,445.13 and 4,118.87 is: 6,179.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,628.93 : 11,445.13 = 4,118.87 : x
  2. Step 2: Convert to fraction form
    7,628.93/11,445.13 = 4,118.87/x
  3. Step 3: Cross multiply
    7,628.93x = 11,445.13 × 4,118.87
  4. Step 4: Simplify right side
    7,628.93x = 47,141,013.20
  5. Step 5: Solve for x
    x = 47,141,013.20/7,628.93
  6. Step 6: Final answer
    x = 6,179.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.