Home / 8,436.59-11,643.56-5,081.21

Finding the Fourth Proportional to 8,436.59, 11,643.56 and 5,081.21

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Solution

The fourth proportional to 8,436.59, 11,643.56 and 5,081.21 is: 7,012.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436.59 : 11,643.56 = 5,081.21 : x
  2. Step 2: Convert to fraction form
    8,436.59/11,643.56 = 5,081.21/x
  3. Step 3: Cross multiply
    8,436.59x = 11,643.56 × 5,081.21
  4. Step 4: Simplify right side
    8,436.59x = 59,163,373.51
  5. Step 5: Solve for x
    x = 59,163,373.51/8,436.59
  6. Step 6: Final answer
    x = 7,012.71

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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.