Home / 7,911.30-10,917.82-4,374.74

Finding the Fourth Proportional to 7,911.30, 10,917.82 and 4,374.74

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Solution

The fourth proportional to 7,911.30, 10,917.82 and 4,374.74 is: 6,037.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,911.30 : 10,917.82 = 4,374.74 : x
  2. Step 2: Convert to fraction form
    7,911.30/10,917.82 = 4,374.74/x
  3. Step 3: Cross multiply
    7,911.30x = 10,917.82 × 4,374.74
  4. Step 4: Simplify right side
    7,911.30x = 47,762,623.87
  5. Step 5: Solve for x
    x = 47,762,623.87/7,911.30
  6. Step 6: Final answer
    x = 6,037.27

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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.