Home / 19,380.60-26,748.14-11,831.32

Finding the Fourth Proportional to 19,380.60, 26,748.14 and 11,831.32

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Solution

The fourth proportional to 19,380.60, 26,748.14 and 11,831.32 is: 16,328.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,380.60 : 26,748.14 = 11,831.32 : x
  2. Step 2: Convert to fraction form
    19,380.60/26,748.14 = 11,831.32/x
  3. Step 3: Cross multiply
    19,380.60x = 26,748.14 × 11,831.32
  4. Step 4: Simplify right side
    19,380.60x = 316,465,694.12
  5. Step 5: Solve for x
    x = 316,465,694.12/19,380.60
  6. Step 6: Final answer
    x = 16,328.99

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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.