Home / 12,030.87-18,046.32-4,638.81

Finding the Fourth Proportional to 12,030.87, 18,046.32 and 4,638.81

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Solution

The fourth proportional to 12,030.87, 18,046.32 and 4,638.81 is: 6,958.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,030.87 : 18,046.32 = 4,638.81 : x
  2. Step 2: Convert to fraction form
    12,030.87/18,046.32 = 4,638.81/x
  3. Step 3: Cross multiply
    12,030.87x = 18,046.32 × 4,638.81
  4. Step 4: Simplify right side
    12,030.87x = 83,713,449.68
  5. Step 5: Solve for x
    x = 83,713,449.68/12,030.87
  6. Step 6: Final answer
    x = 6,958.22

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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.