Home / 8,130.61-12,195.74-3,748.06

Finding the Fourth Proportional to 8,130.61, 12,195.74 and 3,748.06

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Solution

The fourth proportional to 8,130.61, 12,195.74 and 3,748.06 is: 5,622.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.61 : 12,195.74 = 3,748.06 : x
  2. Step 2: Convert to fraction form
    8,130.61/12,195.74 = 3,748.06/x
  3. Step 3: Cross multiply
    8,130.61x = 12,195.74 × 3,748.06
  4. Step 4: Simplify right side
    8,130.61x = 45,710,285.55
  5. Step 5: Solve for x
    x = 45,710,285.55/8,130.61
  6. Step 6: Final answer
    x = 5,622.00

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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.