Home / 18,400.19-25,392.86-10,442.75

Finding the Fourth Proportional to 18,400.19, 25,392.86 and 10,442.75

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Solution

The fourth proportional to 18,400.19, 25,392.86 and 10,442.75 is: 14,411.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,400.19 : 25,392.86 = 10,442.75 : x
  2. Step 2: Convert to fraction form
    18,400.19/25,392.86 = 10,442.75/x
  3. Step 3: Cross multiply
    18,400.19x = 25,392.86 × 10,442.75
  4. Step 4: Simplify right side
    18,400.19x = 265,171,288.77
  5. Step 5: Solve for x
    x = 265,171,288.77/18,400.19
  6. Step 6: Final answer
    x = 14,411.33

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Half scale
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Double scale
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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.