Home / 8,212.31-12,289.28-6,015.59

Finding the Fourth Proportional to 8,212.31, 12,289.28 and 6,015.59

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Solution

The fourth proportional to 8,212.31, 12,289.28 and 6,015.59 is: 9,002.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,212.31 : 12,289.28 = 6,015.59 : x
  2. Step 2: Convert to fraction form
    8,212.31/12,289.28 = 6,015.59/x
  3. Step 3: Cross multiply
    8,212.31x = 12,289.28 × 6,015.59
  4. Step 4: Simplify right side
    8,212.31x = 73,927,178.35
  5. Step 5: Solve for x
    x = 73,927,178.35/8,212.31
  6. Step 6: Final answer
    x = 9,002.00

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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.