Home / 19,816.45-27,348.65-11,319.84

Finding the Fourth Proportional to 19,816.45, 27,348.65 and 11,319.84

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Solution

The fourth proportional to 19,816.45, 27,348.65 and 11,319.84 is: 15,622.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,816.45 : 27,348.65 = 11,319.84 : x
  2. Step 2: Convert to fraction form
    19,816.45/27,348.65 = 11,319.84/x
  3. Step 3: Cross multiply
    19,816.45x = 27,348.65 × 11,319.84
  4. Step 4: Simplify right side
    19,816.45x = 309,582,342.22
  5. Step 5: Solve for x
    x = 309,582,342.22/19,816.45
  6. Step 6: Final answer
    x = 15,622.49

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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.