Home / 13,326.22-18,384.06-8,612.02

Finding the Fourth Proportional to 13,326.22, 18,384.06 and 8,612.02

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Solution

The fourth proportional to 13,326.22, 18,384.06 and 8,612.02 is: 11,880.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.22 : 18,384.06 = 8,612.02 : x
  2. Step 2: Convert to fraction form
    13,326.22/18,384.06 = 8,612.02/x
  3. Step 3: Cross multiply
    13,326.22x = 18,384.06 × 8,612.02
  4. Step 4: Simplify right side
    13,326.22x = 158,323,892.40
  5. Step 5: Solve for x
    x = 158,323,892.40/13,326.22
  6. Step 6: Final answer
    x = 11,880.63

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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.