Home / 8,563.67-11,817.35-4,978.36

Finding the Fourth Proportional to 8,563.67, 11,817.35 and 4,978.36

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Solution

The fourth proportional to 8,563.67, 11,817.35 and 4,978.36 is: 6,869.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,563.67 : 11,817.35 = 4,978.36 : x
  2. Step 2: Convert to fraction form
    8,563.67/11,817.35 = 4,978.36/x
  3. Step 3: Cross multiply
    8,563.67x = 11,817.35 × 4,978.36
  4. Step 4: Simplify right side
    8,563.67x = 58,831,031.09
  5. Step 5: Solve for x
    x = 58,831,031.09/8,563.67
  6. Step 6: Final answer
    x = 6,869.84

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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.