Home / 8,271.85-11,416.95-5,087.88

Finding the Fourth Proportional to 8,271.85, 11,416.95 and 5,087.88

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Solution

The fourth proportional to 8,271.85, 11,416.95 and 5,087.88 is: 7,022.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,271.85 : 11,416.95 = 5,087.88 : x
  2. Step 2: Convert to fraction form
    8,271.85/11,416.95 = 5,087.88/x
  3. Step 3: Cross multiply
    8,271.85x = 11,416.95 × 5,087.88
  4. Step 4: Simplify right side
    8,271.85x = 58,088,071.57
  5. Step 5: Solve for x
    x = 58,088,071.57/8,271.85
  6. Step 6: Final answer
    x = 7,022.38

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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.