Home / 19,766.76-27,288-11,381.64

Finding the Fourth Proportional to 19,766.76, 27,288 and 11,381.64

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Solution

The fourth proportional to 19,766.76, 27,288 and 11,381.64 is: 15,712.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,766.76 : 27,288 = 11,381.64 : x
  2. Step 2: Convert to fraction form
    19,766.76/27,288 = 11,381.64/x
  3. Step 3: Cross multiply
    19,766.76x = 27,288 × 11,381.64
  4. Step 4: Simplify right side
    19,766.76x = 310,582,192.32
  5. Step 5: Solve for x
    x = 310,582,192.32/19,766.76
  6. Step 6: Final answer
    x = 15,712.35

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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.