Home / 12,272.40-16,937.28-8,301.60

Finding the Fourth Proportional to 12,272.40, 16,937.28 and 8,301.60

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Solution

The fourth proportional to 12,272.40, 16,937.28 and 8,301.60 is: 11,457.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,272.40 : 16,937.28 = 8,301.60 : x
  2. Step 2: Convert to fraction form
    12,272.40/16,937.28 = 8,301.60/x
  3. Step 3: Cross multiply
    12,272.40x = 16,937.28 × 8,301.60
  4. Step 4: Simplify right side
    12,272.40x = 140,606,523.65
  5. Step 5: Solve for x
    x = 140,606,523.65/12,272.40
  6. Step 6: Final answer
    x = 11,457.13

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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.