Home / 14,349.12-21,520.32-5,580.48

Finding the Fourth Proportional to 14,349.12, 21,520.32 and 5,580.48

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Solution

The fourth proportional to 14,349.12, 21,520.32 and 5,580.48 is: 8,369.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,349.12 : 21,520.32 = 5,580.48 : x
  2. Step 2: Convert to fraction form
    14,349.12/21,520.32 = 5,580.48/x
  3. Step 3: Cross multiply
    14,349.12x = 21,520.32 × 5,580.48
  4. Step 4: Simplify right side
    14,349.12x = 120,093,715.35
  5. Step 5: Solve for x
    x = 120,093,715.35/14,349.12
  6. Step 6: Final answer
    x = 8,369.41

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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.