Home / 19,864.34-27,415.41-12,811.26

Finding the Fourth Proportional to 19,864.34, 27,415.41 and 12,811.26

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Solution

The fourth proportional to 19,864.34, 27,415.41 and 12,811.26 is: 17,681.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,864.34 : 27,415.41 = 12,811.26 : x
  2. Step 2: Convert to fraction form
    19,864.34/27,415.41 = 12,811.26/x
  3. Step 3: Cross multiply
    19,864.34x = 27,415.41 × 12,811.26
  4. Step 4: Simplify right side
    19,864.34x = 351,226,072.35
  5. Step 5: Solve for x
    x = 351,226,072.35/19,864.34
  6. Step 6: Final answer
    x = 17,681.24

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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.