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Finding the Fourth Proportional to 8,706.05, 13,030.13 and 7,927.84

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Solution

The fourth proportional to 8,706.05, 13,030.13 and 7,927.84 is: 11,865.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,706.05 : 13,030.13 = 7,927.84 : x
  2. Step 2: Convert to fraction form
    8,706.05/13,030.13 = 7,927.84/x
  3. Step 3: Cross multiply
    8,706.05x = 13,030.13 × 7,927.84
  4. Step 4: Simplify right side
    8,706.05x = 103,300,821.93
  5. Step 5: Solve for x
    x = 103,300,821.93/8,706.05
  6. Step 6: Final answer
    x = 11,865.41

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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.