Home / 11,835.32-16,332.16-7,118.68

Finding the Fourth Proportional to 11,835.32, 16,332.16 and 7,118.68

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Solution

The fourth proportional to 11,835.32, 16,332.16 and 7,118.68 is: 9,823.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,835.32 : 16,332.16 = 7,118.68 : x
  2. Step 2: Convert to fraction form
    11,835.32/16,332.16 = 7,118.68/x
  3. Step 3: Cross multiply
    11,835.32x = 16,332.16 × 7,118.68
  4. Step 4: Simplify right side
    11,835.32x = 116,263,420.75
  5. Step 5: Solve for x
    x = 116,263,420.75/11,835.32
  6. Step 6: Final answer
    x = 9,823.43

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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.