Home / 12,077.60-18,108.30-5,500.40

Finding the Fourth Proportional to 12,077.60, 18,108.30 and 5,500.40

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Solution

The fourth proportional to 12,077.60, 18,108.30 and 5,500.40 is: 8,246.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,077.60 : 18,108.30 = 5,500.40 : x
  2. Step 2: Convert to fraction form
    12,077.60/18,108.30 = 5,500.40/x
  3. Step 3: Cross multiply
    12,077.60x = 18,108.30 × 5,500.40
  4. Step 4: Simplify right side
    12,077.60x = 99,602,893.32
  5. Step 5: Solve for x
    x = 99,602,893.32/12,077.60
  6. Step 6: Final answer
    x = 8,246.91

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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.