Home / 12,643.48-18,959.46-6,072.76

Finding the Fourth Proportional to 12,643.48, 18,959.46 and 6,072.76

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Solution

The fourth proportional to 12,643.48, 18,959.46 and 6,072.76 is: 9,106.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,643.48 : 18,959.46 = 6,072.76 : x
  2. Step 2: Convert to fraction form
    12,643.48/18,959.46 = 6,072.76/x
  3. Step 3: Cross multiply
    12,643.48x = 18,959.46 × 6,072.76
  4. Step 4: Simplify right side
    12,643.48x = 115,136,250.31
  5. Step 5: Solve for x
    x = 115,136,250.31/12,643.48
  6. Step 6: Final answer
    x = 9,106.37

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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.