Home / 13,184.13-18,187.29-8,935.41

Finding the Fourth Proportional to 13,184.13, 18,187.29 and 8,935.41

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Solution

The fourth proportional to 13,184.13, 18,187.29 and 8,935.41 is: 12,326.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,184.13 : 18,187.29 = 8,935.41 : x
  2. Step 2: Convert to fraction form
    13,184.13/18,187.29 = 8,935.41/x
  3. Step 3: Cross multiply
    13,184.13x = 18,187.29 × 8,935.41
  4. Step 4: Simplify right side
    13,184.13x = 162,510,892.94
  5. Step 5: Solve for x
    x = 162,510,892.94/13,184.13
  6. Step 6: Final answer
    x = 12,326.25

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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.