Home / 14,279.16-21,420.78-4,419.19

Finding the Fourth Proportional to 14,279.16, 21,420.78 and 4,419.19

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Solution

The fourth proportional to 14,279.16, 21,420.78 and 4,419.19 is: 6,629.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,279.16 : 21,420.78 = 4,419.19 : x
  2. Step 2: Convert to fraction form
    14,279.16/21,420.78 = 4,419.19/x
  3. Step 3: Cross multiply
    14,279.16x = 21,420.78 × 4,419.19
  4. Step 4: Simplify right side
    14,279.16x = 94,662,496.77
  5. Step 5: Solve for x
    x = 94,662,496.77/14,279.16
  6. Step 6: Final answer
    x = 6,629.42

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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.