Home / 14,388.36-21,586.59-5,625.78

Finding the Fourth Proportional to 14,388.36, 21,586.59 and 5,625.78

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Solution

The fourth proportional to 14,388.36, 21,586.59 and 5,625.78 is: 8,440.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,388.36 : 21,586.59 = 5,625.78 : x
  2. Step 2: Convert to fraction form
    14,388.36/21,586.59 = 5,625.78/x
  3. Step 3: Cross multiply
    14,388.36x = 21,586.59 × 5,625.78
  4. Step 4: Simplify right side
    14,388.36x = 121,441,406.29
  5. Step 5: Solve for x
    x = 121,441,406.29/14,388.36
  6. Step 6: Final answer
    x = 8,440.25

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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.