Home / 13,699.02-20,597.43-12,616.45

Finding the Fourth Proportional to 13,699.02, 20,597.43 and 12,616.45

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Solution

The fourth proportional to 13,699.02, 20,597.43 and 12,616.45 is: 18,969.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,699.02 : 20,597.43 = 12,616.45 : x
  2. Step 2: Convert to fraction form
    13,699.02/20,597.43 = 12,616.45/x
  3. Step 3: Cross multiply
    13,699.02x = 20,597.43 × 12,616.45
  4. Step 4: Simplify right side
    13,699.02x = 259,866,445.72
  5. Step 5: Solve for x
    x = 259,866,445.72/13,699.02
  6. Step 6: Final answer
    x = 18,969.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.