Home / 12,900.58-19,243.75-12,468.66

Finding the Fourth Proportional to 12,900.58, 19,243.75 and 12,468.66

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Solution

The fourth proportional to 12,900.58, 19,243.75 and 12,468.66 is: 18,599.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,900.58 : 19,243.75 = 12,468.66 : x
  2. Step 2: Convert to fraction form
    12,900.58/19,243.75 = 12,468.66/x
  3. Step 3: Cross multiply
    12,900.58x = 19,243.75 × 12,468.66
  4. Step 4: Simplify right side
    12,900.58x = 239,943,775.88
  5. Step 5: Solve for x
    x = 239,943,775.88/12,900.58
  6. Step 6: Final answer
    x = 18,599.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.