Home / 14,012.40-21,012.84-11,230.32

Finding the Fourth Proportional to 14,012.40, 21,012.84 and 11,230.32

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Solution

The fourth proportional to 14,012.40, 21,012.84 and 11,230.32 is: 16,840.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,012.40 : 21,012.84 = 11,230.32 : x
  2. Step 2: Convert to fraction form
    14,012.40/21,012.84 = 11,230.32/x
  3. Step 3: Cross multiply
    14,012.40x = 21,012.84 × 11,230.32
  4. Step 4: Simplify right side
    14,012.40x = 235,980,917.31
  5. Step 5: Solve for x
    x = 235,980,917.31/14,012.40
  6. Step 6: Final answer
    x = 16,840.86

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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.