Home / 18,726.83-25,836.81-12,356.58

Finding the Fourth Proportional to 18,726.83, 25,836.81 and 12,356.58

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Solution

The fourth proportional to 18,726.83, 25,836.81 and 12,356.58 is: 17,047.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,726.83 : 25,836.81 = 12,356.58 : x
  2. Step 2: Convert to fraction form
    18,726.83/25,836.81 = 12,356.58/x
  3. Step 3: Cross multiply
    18,726.83x = 25,836.81 × 12,356.58
  4. Step 4: Simplify right side
    18,726.83x = 319,254,660.26
  5. Step 5: Solve for x
    x = 319,254,660.26/18,726.83
  6. Step 6: Final answer
    x = 17,047.98

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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.