Home / 15,539.72-21,445.32-8,466.32

Finding the Fourth Proportional to 15,539.72, 21,445.32 and 8,466.32

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Solution

The fourth proportional to 15,539.72, 21,445.32 and 8,466.32 is: 11,683.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,539.72 : 21,445.32 = 8,466.32 : x
  2. Step 2: Convert to fraction form
    15,539.72/21,445.32 = 8,466.32/x
  3. Step 3: Cross multiply
    15,539.72x = 21,445.32 × 8,466.32
  4. Step 4: Simplify right side
    15,539.72x = 181,562,941.62
  5. Step 5: Solve for x
    x = 181,562,941.62/15,539.72
  6. Step 6: Final answer
    x = 11,683.80

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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.