Home / 12,225.10-16,885.86-9,426.44

Finding the Fourth Proportional to 12,225.10, 16,885.86 and 9,426.44

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Solution

The fourth proportional to 12,225.10, 16,885.86 and 9,426.44 is: 13,020.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,225.10 : 16,885.86 = 9,426.44 : x
  2. Step 2: Convert to fraction form
    12,225.10/16,885.86 = 9,426.44/x
  3. Step 3: Cross multiply
    12,225.10x = 16,885.86 × 9,426.44
  4. Step 4: Simplify right side
    12,225.10x = 159,173,546.14
  5. Step 5: Solve for x
    x = 159,173,546.14/12,225.10
  6. Step 6: Final answer
    x = 13,020.22

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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.