Home / 8,390.26-11,577.60-6,711.06

Finding the Fourth Proportional to 8,390.26, 11,577.60 and 6,711.06

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Solution

The fourth proportional to 8,390.26, 11,577.60 and 6,711.06 is: 9,260.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,390.26 : 11,577.60 = 6,711.06 : x
  2. Step 2: Convert to fraction form
    8,390.26/11,577.60 = 6,711.06/x
  3. Step 3: Cross multiply
    8,390.26x = 11,577.60 × 6,711.06
  4. Step 4: Simplify right side
    8,390.26x = 77,697,968.26
  5. Step 5: Solve for x
    x = 77,697,968.26/8,390.26
  6. Step 6: Final answer
    x = 9,260.50

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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.