Home / 19,118.56-26,389.80-12,392.32

Finding the Fourth Proportional to 19,118.56, 26,389.80 and 12,392.32

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Solution

The fourth proportional to 19,118.56, 26,389.80 and 12,392.32 is: 17,105.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,118.56 : 26,389.80 = 12,392.32 : x
  2. Step 2: Convert to fraction form
    19,118.56/26,389.80 = 12,392.32/x
  3. Step 3: Cross multiply
    19,118.56x = 26,389.80 × 12,392.32
  4. Step 4: Simplify right side
    19,118.56x = 327,030,846.34
  5. Step 5: Solve for x
    x = 327,030,846.34/19,118.56
  6. Step 6: Final answer
    x = 17,105.41

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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.