Home / 14,142.60-19,515.30-8,176.16

Finding the Fourth Proportional to 14,142.60, 19,515.30 and 8,176.16

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Solution

The fourth proportional to 14,142.60, 19,515.30 and 8,176.16 is: 11,282.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,142.60 : 19,515.30 = 8,176.16 : x
  2. Step 2: Convert to fraction form
    14,142.60/19,515.30 = 8,176.16/x
  3. Step 3: Cross multiply
    14,142.60x = 19,515.30 × 8,176.16
  4. Step 4: Simplify right side
    14,142.60x = 159,560,215.25
  5. Step 5: Solve for x
    x = 159,560,215.25/14,142.60
  6. Step 6: Final answer
    x = 11,282.24

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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.