Home / 12,629.84-18,947.45-4,838.63

Finding the Fourth Proportional to 12,629.84, 18,947.45 and 4,838.63

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Solution

The fourth proportional to 12,629.84, 18,947.45 and 4,838.63 is: 7,258.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,629.84 : 18,947.45 = 4,838.63 : x
  2. Step 2: Convert to fraction form
    12,629.84/18,947.45 = 4,838.63/x
  3. Step 3: Cross multiply
    12,629.84x = 18,947.45 × 4,838.63
  4. Step 4: Simplify right side
    12,629.84x = 91,679,617.35
  5. Step 5: Solve for x
    x = 91,679,617.35/12,629.84
  6. Step 6: Final answer
    x = 7,258.97

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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.