Home / 7,785.14-10,743.79-4,428.26

Finding the Fourth Proportional to 7,785.14, 10,743.79 and 4,428.26

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Solution

The fourth proportional to 7,785.14, 10,743.79 and 4,428.26 is: 6,111.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.14 : 10,743.79 = 4,428.26 : x
  2. Step 2: Convert to fraction form
    7,785.14/10,743.79 = 4,428.26/x
  3. Step 3: Cross multiply
    7,785.14x = 10,743.79 × 4,428.26
  4. Step 4: Simplify right side
    7,785.14x = 47,576,241.79
  5. Step 5: Solve for x
    x = 47,576,241.79/7,785.14
  6. Step 6: Final answer
    x = 6,111.16

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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.