Home / 8,829.15-13,239.60-3,900.21

Finding the Fourth Proportional to 8,829.15, 13,239.60 and 3,900.21

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Solution

The fourth proportional to 8,829.15, 13,239.60 and 3,900.21 is: 5,848.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,829.15 : 13,239.60 = 3,900.21 : x
  2. Step 2: Convert to fraction form
    8,829.15/13,239.60 = 3,900.21/x
  3. Step 3: Cross multiply
    8,829.15x = 13,239.60 × 3,900.21
  4. Step 4: Simplify right side
    8,829.15x = 51,637,220.32
  5. Step 5: Solve for x
    x = 51,637,220.32/8,829.15
  6. Step 6: Final answer
    x = 5,848.49

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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.