Home / 6,447.36-8,898.10-3,615.50

Finding the Fourth Proportional to 6,447.36, 8,898.10 and 3,615.50

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Solution

The fourth proportional to 6,447.36, 8,898.10 and 3,615.50 is: 4,989.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,447.36 : 8,898.10 = 3,615.50 : x
  2. Step 2: Convert to fraction form
    6,447.36/8,898.10 = 3,615.50/x
  3. Step 3: Cross multiply
    6,447.36x = 8,898.10 × 3,615.50
  4. Step 4: Simplify right side
    6,447.36x = 32,171,040.23
  5. Step 5: Solve for x
    x = 32,171,040.23/6,447.36
  6. Step 6: Final answer
    x = 4,989.80

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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.