Home / 15,539.94-21,445.12-8,466.36

Finding the Fourth Proportional to 15,539.94, 21,445.12 and 8,466.36

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Solution

The fourth proportional to 15,539.94, 21,445.12 and 8,466.36 is: 11,683.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,539.94 : 21,445.12 = 8,466.36 : x
  2. Step 2: Convert to fraction form
    15,539.94/21,445.12 = 8,466.36/x
  3. Step 3: Cross multiply
    15,539.94x = 21,445.12 × 8,466.36
  4. Step 4: Simplify right side
    15,539.94x = 181,562,235.13
  5. Step 5: Solve for x
    x = 181,562,235.13/15,539.94
  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.