Home / 12,267.36-16,909.20-8,281.53

Finding the Fourth Proportional to 12,267.36, 16,909.20 and 8,281.53

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Solution

The fourth proportional to 12,267.36, 16,909.20 and 8,281.53 is: 11,415.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,267.36 : 16,909.20 = 8,281.53 : x
  2. Step 2: Convert to fraction form
    12,267.36/16,909.20 = 8,281.53/x
  3. Step 3: Cross multiply
    12,267.36x = 16,909.20 × 8,281.53
  4. Step 4: Simplify right side
    12,267.36x = 140,034,047.08
  5. Step 5: Solve for x
    x = 140,034,047.08/12,267.36
  6. Step 6: Final answer
    x = 11,415.17

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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.