Home / 8,130.18-12,196.97-4,621.80

Finding the Fourth Proportional to 8,130.18, 12,196.97 and 4,621.80

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Solution

The fourth proportional to 8,130.18, 12,196.97 and 4,621.80 is: 6,933.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.18 : 12,196.97 = 4,621.80 : x
  2. Step 2: Convert to fraction form
    8,130.18/12,196.97 = 4,621.80/x
  3. Step 3: Cross multiply
    8,130.18x = 12,196.97 × 4,621.80
  4. Step 4: Simplify right side
    8,130.18x = 56,371,955.95
  5. Step 5: Solve for x
    x = 56,371,955.95/8,130.18
  6. Step 6: Final answer
    x = 6,933.67

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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.