Home / 18,090-24,974.44-13,666.32

Finding the Fourth Proportional to 18,090, 24,974.44 and 13,666.32

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Solution

The fourth proportional to 18,090, 24,974.44 and 13,666.32 is: 18,867.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090 : 24,974.44 = 13,666.32 : x
  2. Step 2: Convert to fraction form
    18,090/24,974.44 = 13,666.32/x
  3. Step 3: Cross multiply
    18,090x = 24,974.44 × 13,666.32
  4. Step 4: Simplify right side
    18,090x = 341,308,688.86
  5. Step 5: Solve for x
    x = 341,308,688.86/18,090
  6. Step 6: Final answer
    x = 18,867.26

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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.