Home / 13,700.63-18,889.66-11,180.18

Finding the Fourth Proportional to 13,700.63, 18,889.66 and 11,180.18

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Solution

The fourth proportional to 13,700.63, 18,889.66 and 11,180.18 is: 15,414.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,700.63 : 18,889.66 = 11,180.18 : x
  2. Step 2: Convert to fraction form
    13,700.63/18,889.66 = 11,180.18/x
  3. Step 3: Cross multiply
    13,700.63x = 18,889.66 × 11,180.18
  4. Step 4: Simplify right side
    13,700.63x = 211,189,798.94
  5. Step 5: Solve for x
    x = 211,189,798.94/13,700.63
  6. Step 6: Final answer
    x = 15,414.60

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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.