Home / 11,823.20-16,316.12-6,518.21

Finding the Fourth Proportional to 11,823.20, 16,316.12 and 6,518.21

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Solution

The fourth proportional to 11,823.20, 16,316.12 and 6,518.21 is: 8,995.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,823.20 : 16,316.12 = 6,518.21 : x
  2. Step 2: Convert to fraction form
    11,823.20/16,316.12 = 6,518.21/x
  3. Step 3: Cross multiply
    11,823.20x = 16,316.12 × 6,518.21
  4. Step 4: Simplify right side
    11,823.20x = 106,351,831.26
  5. Step 5: Solve for x
    x = 106,351,831.26/11,823.20
  6. Step 6: Final answer
    x = 8,995.19

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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.