Home / 15,636.36-21,578.21-8,466.35

Finding the Fourth Proportional to 15,636.36, 21,578.21 and 8,466.35

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Solution

The fourth proportional to 15,636.36, 21,578.21 and 8,466.35 is: 11,683.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,636.36 : 21,578.21 = 8,466.35 : x
  2. Step 2: Convert to fraction form
    15,636.36/21,578.21 = 8,466.35/x
  3. Step 3: Cross multiply
    15,636.36x = 21,578.21 × 8,466.35
  4. Step 4: Simplify right side
    15,636.36x = 182,688,678.23
  5. Step 5: Solve for x
    x = 182,688,678.23/15,636.36
  6. Step 6: Final answer
    x = 11,683.58

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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.