Home / 18,851.40-28,293.30-8,337.60

Finding the Fourth Proportional to 18,851.40, 28,293.30 and 8,337.60

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Solution

The fourth proportional to 18,851.40, 28,293.30 and 8,337.60 is: 12,513.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,851.40 : 28,293.30 = 8,337.60 : x
  2. Step 2: Convert to fraction form
    18,851.40/28,293.30 = 8,337.60/x
  3. Step 3: Cross multiply
    18,851.40x = 28,293.30 × 8,337.60
  4. Step 4: Simplify right side
    18,851.40x = 235,898,218.08
  5. Step 5: Solve for x
    x = 235,898,218.08/18,851.40
  6. Step 6: Final answer
    x = 12,513.56

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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.