Home / 14,278.40-21,419.64-4,418.45

Finding the Fourth Proportional to 14,278.40, 21,419.64 and 4,418.45

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Solution

The fourth proportional to 14,278.40, 21,419.64 and 4,418.45 is: 6,628.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,278.40 : 21,419.64 = 4,418.45 : x
  2. Step 2: Convert to fraction form
    14,278.40/21,419.64 = 4,418.45/x
  3. Step 3: Cross multiply
    14,278.40x = 21,419.64 × 4,418.45
  4. Step 4: Simplify right side
    14,278.40x = 94,641,501.26
  5. Step 5: Solve for x
    x = 94,641,501.26/14,278.40
  6. Step 6: Final answer
    x = 6,628.30

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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.