Home / 18,565.45-25,620.50-10,499.53

Finding the Fourth Proportional to 18,565.45, 25,620.50 and 10,499.53

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Solution

The fourth proportional to 18,565.45, 25,620.50 and 10,499.53 is: 14,489.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,565.45 : 25,620.50 = 10,499.53 : x
  2. Step 2: Convert to fraction form
    18,565.45/25,620.50 = 10,499.53/x
  3. Step 3: Cross multiply
    18,565.45x = 25,620.50 × 10,499.53
  4. Step 4: Simplify right side
    18,565.45x = 269,003,208.37
  5. Step 5: Solve for x
    x = 269,003,208.37/18,565.45
  6. Step 6: Final answer
    x = 14,489.45

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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.