Home / 15,539.98-21,445.24-9,166.64

Finding the Fourth Proportional to 15,539.98, 21,445.24 and 9,166.64

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Solution

The fourth proportional to 15,539.98, 21,445.24 and 9,166.64 is: 12,650.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,539.98 : 21,445.24 = 9,166.64 : x
  2. Step 2: Convert to fraction form
    15,539.98/21,445.24 = 9,166.64/x
  3. Step 3: Cross multiply
    15,539.98x = 21,445.24 × 9,166.64
  4. Step 4: Simplify right side
    15,539.98x = 196,580,794.79
  5. Step 5: Solve for x
    x = 196,580,794.79/15,539.98
  6. Step 6: Final answer
    x = 12,650.00

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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.