Home / 19,813.76-27,347.04-11,429.12

Finding the Fourth Proportional to 19,813.76, 27,347.04 and 11,429.12

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Solution

The fourth proportional to 19,813.76, 27,347.04 and 11,429.12 is: 15,774.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,813.76 : 27,347.04 = 11,429.12 : x
  2. Step 2: Convert to fraction form
    19,813.76/27,347.04 = 11,429.12/x
  3. Step 3: Cross multiply
    19,813.76x = 27,347.04 × 11,429.12
  4. Step 4: Simplify right side
    19,813.76x = 312,552,601.80
  5. Step 5: Solve for x
    x = 312,552,601.80/19,813.76
  6. Step 6: Final answer
    x = 15,774.52

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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.