Home / 9,957.46-13,736.68-6,421.81

Finding the Fourth Proportional to 9,957.46, 13,736.68 and 6,421.81

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Solution

The fourth proportional to 9,957.46, 13,736.68 and 6,421.81 is: 8,859.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,957.46 : 13,736.68 = 6,421.81 : x
  2. Step 2: Convert to fraction form
    9,957.46/13,736.68 = 6,421.81/x
  3. Step 3: Cross multiply
    9,957.46x = 13,736.68 × 6,421.81
  4. Step 4: Simplify right side
    9,957.46x = 88,214,348.99
  5. Step 5: Solve for x
    x = 88,214,348.99/9,957.46
  6. Step 6: Final answer
    x = 8,859.12

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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.