Home / 14,298.40-21,469.20-11,015.20

Finding the Fourth Proportional to 14,298.40, 21,469.20 and 11,015.20

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Solution

The fourth proportional to 14,298.40, 21,469.20 and 11,015.20 is: 16,539.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,298.40 : 21,469.20 = 11,015.20 : x
  2. Step 2: Convert to fraction form
    14,298.40/21,469.20 = 11,015.20/x
  3. Step 3: Cross multiply
    14,298.40x = 21,469.20 × 11,015.20
  4. Step 4: Simplify right side
    14,298.40x = 236,487,531.84
  5. Step 5: Solve for x
    x = 236,487,531.84/14,298.40
  6. Step 6: Final answer
    x = 16,539.44

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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.