Home / 14,997.60-20,690.64-9,328.32

Finding the Fourth Proportional to 14,997.60, 20,690.64 and 9,328.32

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Solution

The fourth proportional to 14,997.60, 20,690.64 and 9,328.32 is: 12,869.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,997.60 : 20,690.64 = 9,328.32 : x
  2. Step 2: Convert to fraction form
    14,997.60/20,690.64 = 9,328.32/x
  3. Step 3: Cross multiply
    14,997.60x = 20,690.64 × 9,328.32
  4. Step 4: Simplify right side
    14,997.60x = 193,008,910.92
  5. Step 5: Solve for x
    x = 193,008,910.92/14,997.60
  6. Step 6: Final answer
    x = 12,869.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.