Home / 19,439.86-26,802.49-12,714.84

Finding the Fourth Proportional to 19,439.86, 26,802.49 and 12,714.84

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Solution

The fourth proportional to 19,439.86, 26,802.49 and 12,714.84 is: 17,530.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,439.86 : 26,802.49 = 12,714.84 : x
  2. Step 2: Convert to fraction form
    19,439.86/26,802.49 = 12,714.84/x
  3. Step 3: Cross multiply
    19,439.86x = 26,802.49 × 12,714.84
  4. Step 4: Simplify right side
    19,439.86x = 340,789,371.95
  5. Step 5: Solve for x
    x = 340,789,371.95/19,439.86
  6. Step 6: Final answer
    x = 17,530.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.