Home / 12,267.60-18,410.70-8,989.26

Finding the Fourth Proportional to 12,267.60, 18,410.70 and 8,989.26

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Solution

The fourth proportional to 12,267.60, 18,410.70 and 8,989.26 is: 13,490.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,267.60 : 18,410.70 = 8,989.26 : x
  2. Step 2: Convert to fraction form
    12,267.60/18,410.70 = 8,989.26/x
  3. Step 3: Cross multiply
    12,267.60x = 18,410.70 × 8,989.26
  4. Step 4: Simplify right side
    12,267.60x = 165,498,569.08
  5. Step 5: Solve for x
    x = 165,498,569.08/12,267.60
  6. Step 6: Final answer
    x = 13,490.70

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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.