Home / 18,858.94-28,281.40-5,528.51

Finding the Fourth Proportional to 18,858.94, 28,281.40 and 5,528.51

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Solution

The fourth proportional to 18,858.94, 28,281.40 and 5,528.51 is: 8,290.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,858.94 : 28,281.40 = 5,528.51 : x
  2. Step 2: Convert to fraction form
    18,858.94/28,281.40 = 5,528.51/x
  3. Step 3: Cross multiply
    18,858.94x = 28,281.40 × 5,528.51
  4. Step 4: Simplify right side
    18,858.94x = 156,354,002.71
  5. Step 5: Solve for x
    x = 156,354,002.71/18,858.94
  6. Step 6: Final answer
    x = 8,290.71

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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.