Home / 7,708.10-10,638.12-4,724.36

Finding the Fourth Proportional to 7,708.10, 10,638.12 and 4,724.36

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Solution

The fourth proportional to 7,708.10, 10,638.12 and 4,724.36 is: 6,520.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,708.10 : 10,638.12 = 4,724.36 : x
  2. Step 2: Convert to fraction form
    7,708.10/10,638.12 = 4,724.36/x
  3. Step 3: Cross multiply
    7,708.10x = 10,638.12 × 4,724.36
  4. Step 4: Simplify right side
    7,708.10x = 50,258,308.60
  5. Step 5: Solve for x
    x = 50,258,308.60/7,708.10
  6. Step 6: Final answer
    x = 6,520.19

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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.