Home / 11,685.51-17,528.36-3,894.32

Finding the Fourth Proportional to 11,685.51, 17,528.36 and 3,894.32

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Solution

The fourth proportional to 11,685.51, 17,528.36 and 3,894.32 is: 5,841.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,685.51 : 17,528.36 = 3,894.32 : x
  2. Step 2: Convert to fraction form
    11,685.51/17,528.36 = 3,894.32/x
  3. Step 3: Cross multiply
    11,685.51x = 17,528.36 × 3,894.32
  4. Step 4: Simplify right side
    11,685.51x = 68,260,935.80
  5. Step 5: Solve for x
    x = 68,260,935.80/11,685.51
  6. Step 6: Final answer
    x = 5,841.50

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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.