Home / 13,484.91-18,617.82-8,706.99

Finding the Fourth Proportional to 13,484.91, 18,617.82 and 8,706.99

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Solution

The fourth proportional to 13,484.91, 18,617.82 and 8,706.99 is: 12,021.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,484.91 : 18,617.82 = 8,706.99 : x
  2. Step 2: Convert to fraction form
    13,484.91/18,617.82 = 8,706.99/x
  3. Step 3: Cross multiply
    13,484.91x = 18,617.82 × 8,706.99
  4. Step 4: Simplify right side
    13,484.91x = 162,105,126.02
  5. Step 5: Solve for x
    x = 162,105,126.02/13,484.91
  6. Step 6: Final answer
    x = 12,021.23

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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.