Home / 15,653.09-21,600.97-9,683.19

Finding the Fourth Proportional to 15,653.09, 21,600.97 and 9,683.19

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Solution

The fourth proportional to 15,653.09, 21,600.97 and 9,683.19 is: 13,362.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,653.09 : 21,600.97 = 9,683.19 : x
  2. Step 2: Convert to fraction form
    15,653.09/21,600.97 = 9,683.19/x
  3. Step 3: Cross multiply
    15,653.09x = 21,600.97 × 9,683.19
  4. Step 4: Simplify right side
    15,653.09x = 209,166,272.49
  5. Step 5: Solve for x
    x = 209,166,272.49/15,653.09
  6. Step 6: Final answer
    x = 13,362.62

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Half scale
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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.