Home / 14,509.08-21,664.98-13,687.76

Finding the Fourth Proportional to 14,509.08, 21,664.98 and 13,687.76

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Solution

The fourth proportional to 14,509.08, 21,664.98 and 13,687.76 is: 20,438.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,509.08 : 21,664.98 = 13,687.76 : x
  2. Step 2: Convert to fraction form
    14,509.08/21,664.98 = 13,687.76/x
  3. Step 3: Cross multiply
    14,509.08x = 21,664.98 × 13,687.76
  4. Step 4: Simplify right side
    14,509.08x = 296,545,046.64
  5. Step 5: Solve for x
    x = 296,545,046.64/14,509.08
  6. Step 6: Final answer
    x = 20,438.58

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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.