Home / 11,225.40-16,827.30-8,725.20

Finding the Fourth Proportional to 11,225.40, 16,827.30 and 8,725.20

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Solution

The fourth proportional to 11,225.40, 16,827.30 and 8,725.20 is: 13,079.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,225.40 : 16,827.30 = 8,725.20 : x
  2. Step 2: Convert to fraction form
    11,225.40/16,827.30 = 8,725.20/x
  3. Step 3: Cross multiply
    11,225.40x = 16,827.30 × 8,725.20
  4. Step 4: Simplify right side
    11,225.40x = 146,821,557.96
  5. Step 5: Solve for x
    x = 146,821,557.96/11,225.40
  6. Step 6: Final answer
    x = 13,079.41

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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.