Home / 18,710.84-28,067.64-5,383.30

Finding the Fourth Proportional to 18,710.84, 28,067.64 and 5,383.30

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Solution

The fourth proportional to 18,710.84, 28,067.64 and 5,383.30 is: 8,075.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,710.84 : 28,067.64 = 5,383.30 : x
  2. Step 2: Convert to fraction form
    18,710.84/28,067.64 = 5,383.30/x
  3. Step 3: Cross multiply
    18,710.84x = 28,067.64 × 5,383.30
  4. Step 4: Simplify right side
    18,710.84x = 151,096,526.41
  5. Step 5: Solve for x
    x = 151,096,526.41/18,710.84
  6. Step 6: Final answer
    x = 8,075.35

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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.