Home / 19,131.54-28,685.58-6,646.20

Finding the Fourth Proportional to 19,131.54, 28,685.58 and 6,646.20

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Solution

The fourth proportional to 19,131.54, 28,685.58 and 6,646.20 is: 9,965.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,131.54 : 28,685.58 = 6,646.20 : x
  2. Step 2: Convert to fraction form
    19,131.54/28,685.58 = 6,646.20/x
  3. Step 3: Cross multiply
    19,131.54x = 28,685.58 × 6,646.20
  4. Step 4: Simplify right side
    19,131.54x = 190,650,101.80
  5. Step 5: Solve for x
    x = 190,650,101.80/19,131.54
  6. Step 6: Final answer
    x = 9,965.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.