Home / 12,803.19-19,175.30-12,359.93

Finding the Fourth Proportional to 12,803.19, 19,175.30 and 12,359.93

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Solution

The fourth proportional to 12,803.19, 19,175.30 and 12,359.93 is: 18,511.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,803.19 : 19,175.30 = 12,359.93 : x
  2. Step 2: Convert to fraction form
    12,803.19/19,175.30 = 12,359.93/x
  3. Step 3: Cross multiply
    12,803.19x = 19,175.30 × 12,359.93
  4. Step 4: Simplify right side
    12,803.19x = 237,005,208.05
  5. Step 5: Solve for x
    x = 237,005,208.05/12,803.19
  6. Step 6: Final answer
    x = 18,511.42

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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.