Home / 8,508.26-11,740.59-7,881.32

Finding the Fourth Proportional to 8,508.26, 11,740.59 and 7,881.32

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Solution

The fourth proportional to 8,508.26, 11,740.59 and 7,881.32 is: 10,875.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,508.26 : 11,740.59 = 7,881.32 : x
  2. Step 2: Convert to fraction form
    8,508.26/11,740.59 = 7,881.32/x
  3. Step 3: Cross multiply
    8,508.26x = 11,740.59 × 7,881.32
  4. Step 4: Simplify right side
    8,508.26x = 92,531,288.08
  5. Step 5: Solve for x
    x = 92,531,288.08/8,508.26
  6. Step 6: Final answer
    x = 10,875.47

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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.