Home / 12,628.87-18,947.37-6,055.51

Finding the Fourth Proportional to 12,628.87, 18,947.37 and 6,055.51

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Solution

The fourth proportional to 12,628.87, 18,947.37 and 6,055.51 is: 9,085.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,628.87 : 18,947.37 = 6,055.51 : x
  2. Step 2: Convert to fraction form
    12,628.87/18,947.37 = 6,055.51/x
  3. Step 3: Cross multiply
    12,628.87x = 18,947.37 × 6,055.51
  4. Step 4: Simplify right side
    12,628.87x = 114,735,988.51
  5. Step 5: Solve for x
    x = 114,735,988.51/12,628.87
  6. Step 6: Final answer
    x = 9,085.21

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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.