Home / 19,937.28-27,512.16-11,437.56

Finding the Fourth Proportional to 19,937.28, 27,512.16 and 11,437.56

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Solution

The fourth proportional to 19,937.28, 27,512.16 and 11,437.56 is: 15,783.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,937.28 : 27,512.16 = 11,437.56 : x
  2. Step 2: Convert to fraction form
    19,937.28/27,512.16 = 11,437.56/x
  3. Step 3: Cross multiply
    19,937.28x = 27,512.16 × 11,437.56
  4. Step 4: Simplify right side
    19,937.28x = 314,671,980.73
  5. Step 5: Solve for x
    x = 314,671,980.73/19,937.28
  6. Step 6: Final answer
    x = 15,783.09

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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.