Home / 13,620.02-18,796.99-9,153.07

Finding the Fourth Proportional to 13,620.02, 18,796.99 and 9,153.07

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Solution

The fourth proportional to 13,620.02, 18,796.99 and 9,153.07 is: 12,632.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,620.02 : 18,796.99 = 9,153.07 : x
  2. Step 2: Convert to fraction form
    13,620.02/18,796.99 = 9,153.07/x
  3. Step 3: Cross multiply
    13,620.02x = 18,796.99 × 9,153.07
  4. Step 4: Simplify right side
    13,620.02x = 172,050,165.26
  5. Step 5: Solve for x
    x = 172,050,165.26/13,620.02
  6. Step 6: Final answer
    x = 12,632.15

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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.