Home / 8,142.93-12,210.08-3,983.67

Finding the Fourth Proportional to 8,142.93, 12,210.08 and 3,983.67

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Solution

The fourth proportional to 8,142.93, 12,210.08 and 3,983.67 is: 5,973.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142.93 : 12,210.08 = 3,983.67 : x
  2. Step 2: Convert to fraction form
    8,142.93/12,210.08 = 3,983.67/x
  3. Step 3: Cross multiply
    8,142.93x = 12,210.08 × 3,983.67
  4. Step 4: Simplify right side
    8,142.93x = 48,640,909.48
  5. Step 5: Solve for x
    x = 48,640,909.48/8,142.93
  6. Step 6: Final answer
    x = 5,973.39

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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.