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Finding the Fourth Proportional to 8,735.11, 13,035.53 and 7,800.91

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Solution

The fourth proportional to 8,735.11, 13,035.53 and 7,800.91 is: 11,641.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,735.11 : 13,035.53 = 7,800.91 : x
  2. Step 2: Convert to fraction form
    8,735.11/13,035.53 = 7,800.91/x
  3. Step 3: Cross multiply
    8,735.11x = 13,035.53 × 7,800.91
  4. Step 4: Simplify right side
    8,735.11x = 101,688,983.25
  5. Step 5: Solve for x
    x = 101,688,983.25/8,735.11
  6. Step 6: Final answer
    x = 11,641.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.