Home / 13,985.74-20,966.73-6,190.30

Finding the Fourth Proportional to 13,985.74, 20,966.73 and 6,190.30

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Solution

The fourth proportional to 13,985.74, 20,966.73 and 6,190.30 is: 9,280.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,985.74 : 20,966.73 = 6,190.30 : x
  2. Step 2: Convert to fraction form
    13,985.74/20,966.73 = 6,190.30/x
  3. Step 3: Cross multiply
    13,985.74x = 20,966.73 × 6,190.30
  4. Step 4: Simplify right side
    13,985.74x = 129,790,348.72
  5. Step 5: Solve for x
    x = 129,790,348.72/13,985.74
  6. Step 6: Final answer
    x = 9,280.19

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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.