Home / 8,243.47-12,365.21-5,475.55

Finding the Fourth Proportional to 8,243.47, 12,365.21 and 5,475.55

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Solution

The fourth proportional to 8,243.47, 12,365.21 and 5,475.55 is: 8,213.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,243.47 : 12,365.21 = 5,475.55 : x
  2. Step 2: Convert to fraction form
    8,243.47/12,365.21 = 5,475.55/x
  3. Step 3: Cross multiply
    8,243.47x = 12,365.21 × 5,475.55
  4. Step 4: Simplify right side
    8,243.47x = 67,706,267.32
  5. Step 5: Solve for x
    x = 67,706,267.32/8,243.47
  6. Step 6: Final answer
    x = 8,213.32

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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.