Home / 14,409.36-21,622.14-6,618.78

Finding the Fourth Proportional to 14,409.36, 21,622.14 and 6,618.78

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Solution

The fourth proportional to 14,409.36, 21,622.14 and 6,618.78 is: 9,931.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,409.36 : 21,622.14 = 6,618.78 : x
  2. Step 2: Convert to fraction form
    14,409.36/21,622.14 = 6,618.78/x
  3. Step 3: Cross multiply
    14,409.36x = 21,622.14 × 6,618.78
  4. Step 4: Simplify right side
    14,409.36x = 143,112,187.79
  5. Step 5: Solve for x
    x = 143,112,187.79/14,409.36
  6. Step 6: Final answer
    x = 9,931.89

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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.