Home / 8,716.08-12,025.20-4,938.72

Finding the Fourth Proportional to 8,716.08, 12,025.20 and 4,938.72

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Solution

The fourth proportional to 8,716.08, 12,025.20 and 4,938.72 is: 6,813.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,716.08 : 12,025.20 = 4,938.72 : x
  2. Step 2: Convert to fraction form
    8,716.08/12,025.20 = 4,938.72/x
  3. Step 3: Cross multiply
    8,716.08x = 12,025.20 × 4,938.72
  4. Step 4: Simplify right side
    8,716.08x = 59,389,095.74
  5. Step 5: Solve for x
    x = 59,389,095.74/8,716.08
  6. Step 6: Final answer
    x = 6,813.74

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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.