Home / 9,138.41-13,707.81-2,564.45

Finding the Fourth Proportional to 9,138.41, 13,707.81 and 2,564.45

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Solution

The fourth proportional to 9,138.41, 13,707.81 and 2,564.45 is: 3,846.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,138.41 : 13,707.81 = 2,564.45 : x
  2. Step 2: Convert to fraction form
    9,138.41/13,707.81 = 2,564.45/x
  3. Step 3: Cross multiply
    9,138.41x = 13,707.81 × 2,564.45
  4. Step 4: Simplify right side
    9,138.41x = 35,152,924.82
  5. Step 5: Solve for x
    x = 35,152,924.82/9,138.41
  6. Step 6: Final answer
    x = 3,846.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.