Home / 19,689.36-27,171.18-10,736.88

Finding the Fourth Proportional to 19,689.36, 27,171.18 and 10,736.88

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Solution

The fourth proportional to 19,689.36, 27,171.18 and 10,736.88 is: 14,816.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,689.36 : 27,171.18 = 10,736.88 : x
  2. Step 2: Convert to fraction form
    19,689.36/27,171.18 = 10,736.88/x
  3. Step 3: Cross multiply
    19,689.36x = 27,171.18 × 10,736.88
  4. Step 4: Simplify right side
    19,689.36x = 291,733,699.12
  5. Step 5: Solve for x
    x = 291,733,699.12/19,689.36
  6. Step 6: Final answer
    x = 14,816.82

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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.