Home / 18,835.59-28,253.39-7,148.81

Finding the Fourth Proportional to 18,835.59, 28,253.39 and 7,148.81

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Solution

The fourth proportional to 18,835.59, 28,253.39 and 7,148.81 is: 10,723.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,835.59 : 28,253.39 = 7,148.81 : x
  2. Step 2: Convert to fraction form
    18,835.59/28,253.39 = 7,148.81/x
  3. Step 3: Cross multiply
    18,835.59x = 28,253.39 × 7,148.81
  4. Step 4: Simplify right side
    18,835.59x = 201,977,939.95
  5. Step 5: Solve for x
    x = 201,977,939.95/18,835.59
  6. Step 6: Final answer
    x = 10,723.21

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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.