Home / 12,689.09-19,028.93-4,366.81

Finding the Fourth Proportional to 12,689.09, 19,028.93 and 4,366.81

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Solution

The fourth proportional to 12,689.09, 19,028.93 and 4,366.81 is: 6,548.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,689.09 : 19,028.93 = 4,366.81 : x
  2. Step 2: Convert to fraction form
    12,689.09/19,028.93 = 4,366.81/x
  3. Step 3: Cross multiply
    12,689.09x = 19,028.93 × 4,366.81
  4. Step 4: Simplify right side
    12,689.09x = 83,095,626.67
  5. Step 5: Solve for x
    x = 83,095,626.67/12,689.09
  6. Step 6: Final answer
    x = 6,548.59

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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.