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Finding the Fourth Proportional to 15,706.13, 21,674.45 and 8,633.00

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Solution

The fourth proportional to 15,706.13, 21,674.45 and 8,633.00 is: 11,913.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,706.13 : 21,674.45 = 8,633.00 : x
  2. Step 2: Convert to fraction form
    15,706.13/21,674.45 = 8,633.00/x
  3. Step 3: Cross multiply
    15,706.13x = 21,674.45 × 8,633.00
  4. Step 4: Simplify right side
    15,706.13x = 187,115,602.62
  5. Step 5: Solve for x
    x = 187,115,602.62/15,706.13
  6. Step 6: Final answer
    x = 11,913.54

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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.