Home / 9,403.27-13,000.83-8,990.17

Finding the Fourth Proportional to 9,403.27, 13,000.83 and 8,990.17

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Solution

The fourth proportional to 9,403.27, 13,000.83 and 8,990.17 is: 12,429.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,403.27 : 13,000.83 = 8,990.17 : x
  2. Step 2: Convert to fraction form
    9,403.27/13,000.83 = 8,990.17/x
  3. Step 3: Cross multiply
    9,403.27x = 13,000.83 × 8,990.17
  4. Step 4: Simplify right side
    9,403.27x = 116,879,671.84
  5. Step 5: Solve for x
    x = 116,879,671.84/9,403.27
  6. Step 6: Final answer
    x = 12,429.68

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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.