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Finding the Fourth Proportional to 5,563.76, 8,365.65 and 5,130.31

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Solution

The fourth proportional to 5,563.76, 8,365.65 and 5,130.31 is: 7,713.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,563.76 : 8,365.65 = 5,130.31 : x
  2. Step 2: Convert to fraction form
    5,563.76/8,365.65 = 5,130.31/x
  3. Step 3: Cross multiply
    5,563.76x = 8,365.65 × 5,130.31
  4. Step 4: Simplify right side
    5,563.76x = 42,918,377.85
  5. Step 5: Solve for x
    x = 42,918,377.85/5,563.76
  6. Step 6: Final answer
    x = 7,713.92

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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.