Home / 9,210.99-12,715.71-6,380.52

Finding the Fourth Proportional to 9,210.99, 12,715.71 and 6,380.52

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Solution

The fourth proportional to 9,210.99, 12,715.71 and 6,380.52 is: 8,808.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,210.99 : 12,715.71 = 6,380.52 : x
  2. Step 2: Convert to fraction form
    9,210.99/12,715.71 = 6,380.52/x
  3. Step 3: Cross multiply
    9,210.99x = 12,715.71 × 6,380.52
  4. Step 4: Simplify right side
    9,210.99x = 81,132,841.97
  5. Step 5: Solve for x
    x = 81,132,841.97/9,210.99
  6. Step 6: Final answer
    x = 8,808.27

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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.