Home / 18,553.04-25,589.64-13,518.80

Finding the Fourth Proportional to 18,553.04, 25,589.64 and 13,518.80

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Solution

The fourth proportional to 18,553.04, 25,589.64 and 13,518.80 is: 18,646.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,553.04 : 25,589.64 = 13,518.80 : x
  2. Step 2: Convert to fraction form
    18,553.04/25,589.64 = 13,518.80/x
  3. Step 3: Cross multiply
    18,553.04x = 25,589.64 × 13,518.80
  4. Step 4: Simplify right side
    18,553.04x = 345,941,225.23
  5. Step 5: Solve for x
    x = 345,941,225.23/18,553.04
  6. Step 6: Final answer
    x = 18,646.07

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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.