Home / 14,355.38-21,509.60-13,808.63

Finding the Fourth Proportional to 14,355.38, 21,509.60 and 13,808.63

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Solution

The fourth proportional to 14,355.38, 21,509.60 and 13,808.63 is: 20,690.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,355.38 : 21,509.60 = 13,808.63 : x
  2. Step 2: Convert to fraction form
    14,355.38/21,509.60 = 13,808.63/x
  3. Step 3: Cross multiply
    14,355.38x = 21,509.60 × 13,808.63
  4. Step 4: Simplify right side
    14,355.38x = 297,018,049.26
  5. Step 5: Solve for x
    x = 297,018,049.26/14,355.38
  6. Step 6: Final answer
    x = 20,690.37

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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.