Home / 14,639.49-21,959.19-4,778.73

Finding the Fourth Proportional to 14,639.49, 21,959.19 and 4,778.73

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Solution

The fourth proportional to 14,639.49, 21,959.19 and 4,778.73 is: 7,168.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,639.49 : 21,959.19 = 4,778.73 : x
  2. Step 2: Convert to fraction form
    14,639.49/21,959.19 = 4,778.73/x
  3. Step 3: Cross multiply
    14,639.49x = 21,959.19 × 4,778.73
  4. Step 4: Simplify right side
    14,639.49x = 104,937,040.03
  5. Step 5: Solve for x
    x = 104,937,040.03/14,639.49
  6. Step 6: Final answer
    x = 7,168.08

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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.