Home / 18,674.12-28,011.47-5,527.82

Finding the Fourth Proportional to 18,674.12, 28,011.47 and 5,527.82

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Solution

The fourth proportional to 18,674.12, 28,011.47 and 5,527.82 is: 8,291.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,674.12 : 28,011.47 = 5,527.82 : x
  2. Step 2: Convert to fraction form
    18,674.12/28,011.47 = 5,527.82/x
  3. Step 3: Cross multiply
    18,674.12x = 28,011.47 × 5,527.82
  4. Step 4: Simplify right side
    18,674.12x = 154,842,196.40
  5. Step 5: Solve for x
    x = 154,842,196.40/18,674.12
  6. Step 6: Final answer
    x = 8,291.81

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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.