Home / 11,167.83-15,408.45-8,802.63

Finding the Fourth Proportional to 11,167.83, 15,408.45 and 8,802.63

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Solution

The fourth proportional to 11,167.83, 15,408.45 and 8,802.63 is: 12,145.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,167.83 : 15,408.45 = 8,802.63 : x
  2. Step 2: Convert to fraction form
    11,167.83/15,408.45 = 8,802.63/x
  3. Step 3: Cross multiply
    11,167.83x = 15,408.45 × 8,802.63
  4. Step 4: Simplify right side
    11,167.83x = 135,634,884.22
  5. Step 5: Solve for x
    x = 135,634,884.22/11,167.83
  6. Step 6: Final answer
    x = 12,145.14

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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.