Home / 18,903.07-28,357.26-6,426.64

Finding the Fourth Proportional to 18,903.07, 28,357.26 and 6,426.64

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Solution

The fourth proportional to 18,903.07, 28,357.26 and 6,426.64 is: 9,640.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,903.07 : 28,357.26 = 6,426.64 : x
  2. Step 2: Convert to fraction form
    18,903.07/28,357.26 = 6,426.64/x
  3. Step 3: Cross multiply
    18,903.07x = 28,357.26 × 6,426.64
  4. Step 4: Simplify right side
    18,903.07x = 182,241,901.41
  5. Step 5: Solve for x
    x = 182,241,901.41/18,903.07
  6. Step 6: Final answer
    x = 9,640.86

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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.