Home / 18,893.40-28,341.47-6,408.37

Finding the Fourth Proportional to 18,893.40, 28,341.47 and 6,408.37

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Solution

The fourth proportional to 18,893.40, 28,341.47 and 6,408.37 is: 9,613.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,893.40 : 28,341.47 = 6,408.37 : x
  2. Step 2: Convert to fraction form
    18,893.40/28,341.47 = 6,408.37/x
  3. Step 3: Cross multiply
    18,893.40x = 28,341.47 × 6,408.37
  4. Step 4: Simplify right side
    18,893.40x = 181,622,500.11
  5. Step 5: Solve for x
    x = 181,622,500.11/18,893.40
  6. Step 6: Final answer
    x = 9,613.01

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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.