Home / 8,436.79-11,643.76-7,017.97

Finding the Fourth Proportional to 8,436.79, 11,643.76 and 7,017.97

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Solution

The fourth proportional to 8,436.79, 11,643.76 and 7,017.97 is: 9,685.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436.79 : 11,643.76 = 7,017.97 : x
  2. Step 2: Convert to fraction form
    8,436.79/11,643.76 = 7,017.97/x
  3. Step 3: Cross multiply
    8,436.79x = 11,643.76 × 7,017.97
  4. Step 4: Simplify right side
    8,436.79x = 81,715,558.37
  5. Step 5: Solve for x
    x = 81,715,558.37/8,436.79
  6. Step 6: Final answer
    x = 9,685.62

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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.