Home / 18,565.86-25,577.57-15,189.00

Finding the Fourth Proportional to 18,565.86, 25,577.57 and 15,189.00

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Solution

The fourth proportional to 18,565.86, 25,577.57 and 15,189.00 is: 20,925.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,565.86 : 25,577.57 = 15,189.00 : x
  2. Step 2: Convert to fraction form
    18,565.86/25,577.57 = 15,189.00/x
  3. Step 3: Cross multiply
    18,565.86x = 25,577.57 × 15,189.00
  4. Step 4: Simplify right side
    18,565.86x = 388,497,652.79
  5. Step 5: Solve for x
    x = 388,497,652.79/18,565.86
  6. Step 6: Final answer
    x = 20,925.37

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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.