Home / 10,118.22-13,931.36-8,602.80

Finding the Fourth Proportional to 10,118.22, 13,931.36 and 8,602.80

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Solution

The fourth proportional to 10,118.22, 13,931.36 and 8,602.80 is: 11,844.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,118.22 : 13,931.36 = 8,602.80 : x
  2. Step 2: Convert to fraction form
    10,118.22/13,931.36 = 8,602.80/x
  3. Step 3: Cross multiply
    10,118.22x = 13,931.36 × 8,602.80
  4. Step 4: Simplify right side
    10,118.22x = 119,848,660.79
  5. Step 5: Solve for x
    x = 119,848,660.79/10,118.22
  6. Step 6: Final answer
    x = 11,844.84

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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.