Home / 18,940.37-26,138.16-10,443.06

Finding the Fourth Proportional to 18,940.37, 26,138.16 and 10,443.06

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Solution

The fourth proportional to 18,940.37, 26,138.16 and 10,443.06 is: 14,411.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,940.37 : 26,138.16 = 10,443.06 : x
  2. Step 2: Convert to fraction form
    18,940.37/26,138.16 = 10,443.06/x
  3. Step 3: Cross multiply
    18,940.37x = 26,138.16 × 10,443.06
  4. Step 4: Simplify right side
    18,940.37x = 272,962,373.17
  5. Step 5: Solve for x
    x = 272,962,373.17/18,940.37
  6. Step 6: Final answer
    x = 14,411.67

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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.