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Finding the Fourth Proportional to 8,663.45, 12,973.04 and 4,763.57

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Solution

The fourth proportional to 8,663.45, 12,973.04 and 4,763.57 is: 7,133.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,663.45 : 12,973.04 = 4,763.57 : x
  2. Step 2: Convert to fraction form
    8,663.45/12,973.04 = 4,763.57/x
  3. Step 3: Cross multiply
    8,663.45x = 12,973.04 × 4,763.57
  4. Step 4: Simplify right side
    8,663.45x = 61,797,960.33
  5. Step 5: Solve for x
    x = 61,797,960.33/8,663.45
  6. Step 6: Final answer
    x = 7,133.18

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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.