Home / 8,749.40-13,124.23-4,878.41

Finding the Fourth Proportional to 8,749.40, 13,124.23 and 4,878.41

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Solution

The fourth proportional to 8,749.40, 13,124.23 and 4,878.41 is: 7,317.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.40 : 13,124.23 = 4,878.41 : x
  2. Step 2: Convert to fraction form
    8,749.40/13,124.23 = 4,878.41/x
  3. Step 3: Cross multiply
    8,749.40x = 13,124.23 × 4,878.41
  4. Step 4: Simplify right side
    8,749.40x = 64,025,297.06
  5. Step 5: Solve for x
    x = 64,025,297.06/8,749.40
  6. Step 6: Final answer
    x = 7,317.68

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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.