Home / 8,488.60-11,715.65-4,712.99

Finding the Fourth Proportional to 8,488.60, 11,715.65 and 4,712.99

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Solution

The fourth proportional to 8,488.60, 11,715.65 and 4,712.99 is: 6,504.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488.60 : 11,715.65 = 4,712.99 : x
  2. Step 2: Convert to fraction form
    8,488.60/11,715.65 = 4,712.99/x
  3. Step 3: Cross multiply
    8,488.60x = 11,715.65 × 4,712.99
  4. Step 4: Simplify right side
    8,488.60x = 55,215,694.50
  5. Step 5: Solve for x
    x = 55,215,694.50/8,488.60
  6. Step 6: Final answer
    x = 6,504.69

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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.