Home / 7,656.56-11,479.43-2,972.67

Finding the Fourth Proportional to 7,656.56, 11,479.43 and 2,972.67

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Solution

The fourth proportional to 7,656.56, 11,479.43 and 2,972.67 is: 4,456.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,656.56 : 11,479.43 = 2,972.67 : x
  2. Step 2: Convert to fraction form
    7,656.56/11,479.43 = 2,972.67/x
  3. Step 3: Cross multiply
    7,656.56x = 11,479.43 × 2,972.67
  4. Step 4: Simplify right side
    7,656.56x = 34,124,542.31
  5. Step 5: Solve for x
    x = 34,124,542.31/7,656.56
  6. Step 6: Final answer
    x = 4,456.91

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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.