Home / 14,419.09-21,628.59-5,647.87

Finding the Fourth Proportional to 14,419.09, 21,628.59 and 5,647.87

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Solution

The fourth proportional to 14,419.09, 21,628.59 and 5,647.87 is: 8,471.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,419.09 : 21,628.59 = 5,647.87 : x
  2. Step 2: Convert to fraction form
    14,419.09/21,628.59 = 5,647.87/x
  3. Step 3: Cross multiply
    14,419.09x = 21,628.59 × 5,647.87
  4. Step 4: Simplify right side
    14,419.09x = 122,155,356.46
  5. Step 5: Solve for x
    x = 122,155,356.46/14,419.09
  6. Step 6: Final answer
    x = 8,471.78

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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.