Home / 12,721.08-19,048.98-8,325.72

Finding the Fourth Proportional to 12,721.08, 19,048.98 and 8,325.72

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Solution

The fourth proportional to 12,721.08, 19,048.98 and 8,325.72 is: 12,467.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,721.08 : 19,048.98 = 8,325.72 : x
  2. Step 2: Convert to fraction form
    12,721.08/19,048.98 = 8,325.72/x
  3. Step 3: Cross multiply
    12,721.08x = 19,048.98 × 8,325.72
  4. Step 4: Simplify right side
    12,721.08x = 158,596,473.77
  5. Step 5: Solve for x
    x = 158,596,473.77/12,721.08
  6. Step 6: Final answer
    x = 12,467.22

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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.