Home / 19,655.40-27,122.67-11,696.34

Finding the Fourth Proportional to 19,655.40, 27,122.67 and 11,696.34

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Solution

The fourth proportional to 19,655.40, 27,122.67 and 11,696.34 is: 16,139.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,655.40 : 27,122.67 = 11,696.34 : x
  2. Step 2: Convert to fraction form
    19,655.40/27,122.67 = 11,696.34/x
  3. Step 3: Cross multiply
    19,655.40x = 27,122.67 × 11,696.34
  4. Step 4: Simplify right side
    19,655.40x = 317,235,970.03
  5. Step 5: Solve for x
    x = 317,235,970.03/19,655.40
  6. Step 6: Final answer
    x = 16,139.89

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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.