Home / 13,187.08-18,184.53-11,305.18

Finding the Fourth Proportional to 13,187.08, 18,184.53 and 11,305.18

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Solution

The fourth proportional to 13,187.08, 18,184.53 and 11,305.18 is: 15,589.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.08 : 18,184.53 = 11,305.18 : x
  2. Step 2: Convert to fraction form
    13,187.08/18,184.53 = 11,305.18/x
  3. Step 3: Cross multiply
    13,187.08x = 18,184.53 × 11,305.18
  4. Step 4: Simplify right side
    13,187.08x = 205,579,384.87
  5. Step 5: Solve for x
    x = 205,579,384.87/13,187.08
  6. Step 6: Final answer
    x = 15,589.45

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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.