Home / 14,116.80-19,473.60-9,640.80

Finding the Fourth Proportional to 14,116.80, 19,473.60 and 9,640.80

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Solution

The fourth proportional to 14,116.80, 19,473.60 and 9,640.80 is: 13,299.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,116.80 : 19,473.60 = 9,640.80 : x
  2. Step 2: Convert to fraction form
    14,116.80/19,473.60 = 9,640.80/x
  3. Step 3: Cross multiply
    14,116.80x = 19,473.60 × 9,640.80
  4. Step 4: Simplify right side
    14,116.80x = 187,741,082.88
  5. Step 5: Solve for x
    x = 187,741,082.88/14,116.80
  6. Step 6: Final answer
    x = 13,299.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.