Home / 12,126.60-18,185.04-4,331.16

Finding the Fourth Proportional to 12,126.60, 18,185.04 and 4,331.16

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Solution

The fourth proportional to 12,126.60, 18,185.04 and 4,331.16 is: 6,495.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,126.60 : 18,185.04 = 4,331.16 : x
  2. Step 2: Convert to fraction form
    12,126.60/18,185.04 = 4,331.16/x
  3. Step 3: Cross multiply
    12,126.60x = 18,185.04 × 4,331.16
  4. Step 4: Simplify right side
    12,126.60x = 78,762,317.85
  5. Step 5: Solve for x
    x = 78,762,317.85/12,126.60
  6. Step 6: Final answer
    x = 6,495.00

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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.