Home / 13,885.18-19,162.64-8,851.64

Finding the Fourth Proportional to 13,885.18, 19,162.64 and 8,851.64

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Solution

The fourth proportional to 13,885.18, 19,162.64 and 8,851.64 is: 12,215.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,885.18 : 19,162.64 = 8,851.64 : x
  2. Step 2: Convert to fraction form
    13,885.18/19,162.64 = 8,851.64/x
  3. Step 3: Cross multiply
    13,885.18x = 19,162.64 × 8,851.64
  4. Step 4: Simplify right side
    13,885.18x = 169,620,717.05
  5. Step 5: Solve for x
    x = 169,620,717.05/13,885.18
  6. Step 6: Final answer
    x = 12,215.96

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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.