Home / 19,649.60-27,117.92-11,153.20

Finding the Fourth Proportional to 19,649.60, 27,117.92 and 11,153.20

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Solution

The fourth proportional to 19,649.60, 27,117.92 and 11,153.20 is: 15,392.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,649.60 : 27,117.92 = 11,153.20 : x
  2. Step 2: Convert to fraction form
    19,649.60/27,117.92 = 11,153.20/x
  3. Step 3: Cross multiply
    19,649.60x = 27,117.92 × 11,153.20
  4. Step 4: Simplify right side
    19,649.60x = 302,451,585.34
  5. Step 5: Solve for x
    x = 302,451,585.34/19,649.60
  6. Step 6: Final answer
    x = 15,392.25

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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.