Home / 7,615.77-11,411.85-5,280.33

Finding the Fourth Proportional to 7,615.77, 11,411.85 and 5,280.33

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Solution

The fourth proportional to 7,615.77, 11,411.85 and 5,280.33 is: 7,912.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,615.77 : 11,411.85 = 5,280.33 : x
  2. Step 2: Convert to fraction form
    7,615.77/11,411.85 = 5,280.33/x
  3. Step 3: Cross multiply
    7,615.77x = 11,411.85 × 5,280.33
  4. Step 4: Simplify right side
    7,615.77x = 60,258,333.91
  5. Step 5: Solve for x
    x = 60,258,333.91/7,615.77
  6. Step 6: Final answer
    x = 7,912.31

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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.