Home / 9,112.41-12,576.78-5,335.74

Finding the Fourth Proportional to 9,112.41, 12,576.78 and 5,335.74

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Solution

The fourth proportional to 9,112.41, 12,576.78 and 5,335.74 is: 7,364.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,112.41 : 12,576.78 = 5,335.74 : x
  2. Step 2: Convert to fraction form
    9,112.41/12,576.78 = 5,335.74/x
  3. Step 3: Cross multiply
    9,112.41x = 12,576.78 × 5,335.74
  4. Step 4: Simplify right side
    9,112.41x = 67,106,428.12
  5. Step 5: Solve for x
    x = 67,106,428.12/9,112.41
  6. Step 6: Final answer
    x = 7,364.29

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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.