Home / 19,648.51-27,116.18-11,691.07

Finding the Fourth Proportional to 19,648.51, 27,116.18 and 11,691.07

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Solution

The fourth proportional to 19,648.51, 27,116.18 and 11,691.07 is: 16,134.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,648.51 : 27,116.18 = 11,691.07 : x
  2. Step 2: Convert to fraction form
    19,648.51/27,116.18 = 11,691.07/x
  3. Step 3: Cross multiply
    19,648.51x = 27,116.18 × 11,691.07
  4. Step 4: Simplify right side
    19,648.51x = 317,017,158.51
  5. Step 5: Solve for x
    x = 317,017,158.51/19,648.51
  6. Step 6: Final answer
    x = 16,134.41

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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.