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Finding the Fourth Proportional to 9,783, 13,500.54 and 5,591.34

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Solution

The fourth proportional to 9,783, 13,500.54 and 5,591.34 is: 7,716.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,783 : 13,500.54 = 5,591.34 : x
  2. Step 2: Convert to fraction form
    9,783/13,500.54 = 5,591.34/x
  3. Step 3: Cross multiply
    9,783x = 13,500.54 × 5,591.34
  4. Step 4: Simplify right side
    9,783x = 75,486,109.32
  5. Step 5: Solve for x
    x = 75,486,109.32/9,783
  6. Step 6: Final answer
    x = 7,716.05

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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.