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Finding the Fourth Proportional to 8,812.70, 13,233.45 and 5,903.90

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Solution

The fourth proportional to 8,812.70, 13,233.45 and 5,903.90 is: 8,865.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.70 : 13,233.45 = 5,903.90 : x
  2. Step 2: Convert to fraction form
    8,812.70/13,233.45 = 5,903.90/x
  3. Step 3: Cross multiply
    8,812.70x = 13,233.45 × 5,903.90
  4. Step 4: Simplify right side
    8,812.70x = 78,128,965.46
  5. Step 5: Solve for x
    x = 78,128,965.46/8,812.70
  6. Step 6: Final answer
    x = 8,865.50

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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.