Home / 8,212.71-12,319.02-3,018.63

Finding the Fourth Proportional to 8,212.71, 12,319.02 and 3,018.63

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Solution

The fourth proportional to 8,212.71, 12,319.02 and 3,018.63 is: 4,527.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,212.71 : 12,319.02 = 3,018.63 : x
  2. Step 2: Convert to fraction form
    8,212.71/12,319.02 = 3,018.63/x
  3. Step 3: Cross multiply
    8,212.71x = 12,319.02 × 3,018.63
  4. Step 4: Simplify right side
    8,212.71x = 37,186,563.34
  5. Step 5: Solve for x
    x = 37,186,563.34/8,212.71
  6. Step 6: Final answer
    x = 4,527.93

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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.