Home / 19,695.84-27,179.19-11,312.34

Finding the Fourth Proportional to 19,695.84, 27,179.19 and 11,312.34

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Solution

The fourth proportional to 19,695.84, 27,179.19 and 11,312.34 is: 15,610.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,695.84 : 27,179.19 = 11,312.34 : x
  2. Step 2: Convert to fraction form
    19,695.84/27,179.19 = 11,312.34/x
  3. Step 3: Cross multiply
    19,695.84x = 27,179.19 × 11,312.34
  4. Step 4: Simplify right side
    19,695.84x = 307,460,238.20
  5. Step 5: Solve for x
    x = 307,460,238.20/19,695.84
  6. Step 6: Final answer
    x = 15,610.42

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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.