Home / 12,270.88-16,926.64-8,909.76

Finding the Fourth Proportional to 12,270.88, 16,926.64 and 8,909.76

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Solution

The fourth proportional to 12,270.88, 16,926.64 and 8,909.76 is: 12,290.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,270.88 : 16,926.64 = 8,909.76 : x
  2. Step 2: Convert to fraction form
    12,270.88/16,926.64 = 8,909.76/x
  3. Step 3: Cross multiply
    12,270.88x = 16,926.64 × 8,909.76
  4. Step 4: Simplify right side
    12,270.88x = 150,812,300.01
  5. Step 5: Solve for x
    x = 150,812,300.01/12,270.88
  6. Step 6: Final answer
    x = 12,290.26

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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.