Home / 18,889.32-26,022.15-13,213.47

Finding the Fourth Proportional to 18,889.32, 26,022.15 and 13,213.47

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Solution

The fourth proportional to 18,889.32, 26,022.15 and 13,213.47 is: 18,203.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,889.32 : 26,022.15 = 13,213.47 : x
  2. Step 2: Convert to fraction form
    18,889.32/26,022.15 = 13,213.47/x
  3. Step 3: Cross multiply
    18,889.32x = 26,022.15 × 13,213.47
  4. Step 4: Simplify right side
    18,889.32x = 343,842,898.36
  5. Step 5: Solve for x
    x = 343,842,898.36/18,889.32
  6. Step 6: Final answer
    x = 18,203.03

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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.