Home / 14,216.40-21,219.30-13,340.88

Finding the Fourth Proportional to 14,216.40, 21,219.30 and 13,340.88

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Solution

The fourth proportional to 14,216.40, 21,219.30 and 13,340.88 is: 19,912.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,216.40 : 21,219.30 = 13,340.88 : x
  2. Step 2: Convert to fraction form
    14,216.40/21,219.30 = 13,340.88/x
  3. Step 3: Cross multiply
    14,216.40x = 21,219.30 × 13,340.88
  4. Step 4: Simplify right side
    14,216.40x = 283,084,134.98
  5. Step 5: Solve for x
    x = 283,084,134.98/14,216.40
  6. Step 6: Final answer
    x = 19,912.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.