Home / 8,910.91-12,296.53-4,931.79

Finding the Fourth Proportional to 8,910.91, 12,296.53 and 4,931.79

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Solution

The fourth proportional to 8,910.91, 12,296.53 and 4,931.79 is: 6,805.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,910.91 : 12,296.53 = 4,931.79 : x
  2. Step 2: Convert to fraction form
    8,910.91/12,296.53 = 4,931.79/x
  3. Step 3: Cross multiply
    8,910.91x = 12,296.53 × 4,931.79
  4. Step 4: Simplify right side
    8,910.91x = 60,643,903.69
  5. Step 5: Solve for x
    x = 60,643,903.69/8,910.91
  6. Step 6: Final answer
    x = 6,805.58

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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.