Home / 13,370.08-20,025.96-6,430

Finding the Fourth Proportional to 13,370.08, 20,025.96 and 6,430

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Solution

The fourth proportional to 13,370.08, 20,025.96 and 6,430 is: 9,630.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,370.08 : 20,025.96 = 6,430 : x
  2. Step 2: Convert to fraction form
    13,370.08/20,025.96 = 6,430/x
  3. Step 3: Cross multiply
    13,370.08x = 20,025.96 × 6,430
  4. Step 4: Simplify right side
    13,370.08x = 128,766,922.80
  5. Step 5: Solve for x
    x = 128,766,922.80/13,370.08
  6. Step 6: Final answer
    x = 9,630.98

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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.