Home / 10,885.22-16,305.78-9,125.22

Finding the Fourth Proportional to 10,885.22, 16,305.78 and 9,125.22

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Solution

The fourth proportional to 10,885.22, 16,305.78 and 9,125.22 is: 13,669.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,885.22 : 16,305.78 = 9,125.22 : x
  2. Step 2: Convert to fraction form
    10,885.22/16,305.78 = 9,125.22/x
  3. Step 3: Cross multiply
    10,885.22x = 16,305.78 × 9,125.22
  4. Step 4: Simplify right side
    10,885.22x = 148,793,829.77
  5. Step 5: Solve for x
    x = 148,793,829.77/10,885.22
  6. Step 6: Final answer
    x = 13,669.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.