Home / 12,669.22-19,008.36-6,424.48

Finding the Fourth Proportional to 12,669.22, 19,008.36 and 6,424.48

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Solution

The fourth proportional to 12,669.22, 19,008.36 and 6,424.48 is: 9,639.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,669.22 : 19,008.36 = 6,424.48 : x
  2. Step 2: Convert to fraction form
    12,669.22/19,008.36 = 6,424.48/x
  3. Step 3: Cross multiply
    12,669.22x = 19,008.36 × 6,424.48
  4. Step 4: Simplify right side
    12,669.22x = 122,118,903.80
  5. Step 5: Solve for x
    x = 122,118,903.80/12,669.22
  6. Step 6: Final answer
    x = 9,639.02

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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.