Home / 19,650.16-27,109.38-11,689.48

Finding the Fourth Proportional to 19,650.16, 27,109.38 and 11,689.48

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Solution

The fourth proportional to 19,650.16, 27,109.38 and 11,689.48 is: 16,126.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,650.16 : 27,109.38 = 11,689.48 : x
  2. Step 2: Convert to fraction form
    19,650.16/27,109.38 = 11,689.48/x
  3. Step 3: Cross multiply
    19,650.16x = 27,109.38 × 11,689.48
  4. Step 4: Simplify right side
    19,650.16x = 316,894,555.32
  5. Step 5: Solve for x
    x = 316,894,555.32/19,650.16
  6. Step 6: Final answer
    x = 16,126.82

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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.