Home / 19,439.36-26,801.80-12,714.34

Finding the Fourth Proportional to 19,439.36, 26,801.80 and 12,714.34

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Solution

The fourth proportional to 19,439.36, 26,801.80 and 12,714.34 is: 17,529.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,439.36 : 26,801.80 = 12,714.34 : x
  2. Step 2: Convert to fraction form
    19,439.36/26,801.80 = 12,714.34/x
  3. Step 3: Cross multiply
    19,439.36x = 26,801.80 × 12,714.34
  4. Step 4: Simplify right side
    19,439.36x = 340,767,197.81
  5. Step 5: Solve for x
    x = 340,767,197.81/19,439.36
  6. Step 6: Final answer
    x = 17,529.75

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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.