Home / 11,267.40-16,890.30-8,767.20

Finding the Fourth Proportional to 11,267.40, 16,890.30 and 8,767.20

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Solution

The fourth proportional to 11,267.40, 16,890.30 and 8,767.20 is: 13,142.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,267.40 : 16,890.30 = 8,767.20 : x
  2. Step 2: Convert to fraction form
    11,267.40/16,890.30 = 8,767.20/x
  3. Step 3: Cross multiply
    11,267.40x = 16,890.30 × 8,767.20
  4. Step 4: Simplify right side
    11,267.40x = 148,080,638.16
  5. Step 5: Solve for x
    x = 148,080,638.16/11,267.40
  6. Step 6: Final answer
    x = 13,142.40

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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.