Home / 18,673.40-28,015.54-5,526.12

Finding the Fourth Proportional to 18,673.40, 28,015.54 and 5,526.12

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Solution

The fourth proportional to 18,673.40, 28,015.54 and 5,526.12 is: 8,290.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,673.40 : 28,015.54 = 5,526.12 : x
  2. Step 2: Convert to fraction form
    18,673.40/28,015.54 = 5,526.12/x
  3. Step 3: Cross multiply
    18,673.40x = 28,015.54 × 5,526.12
  4. Step 4: Simplify right side
    18,673.40x = 154,817,235.90
  5. Step 5: Solve for x
    x = 154,817,235.90/18,673.40
  6. Step 6: Final answer
    x = 8,290.79

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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.