Home / 8,619.09-12,823.73-8,589.93

Finding the Fourth Proportional to 8,619.09, 12,823.73 and 8,589.93

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Solution

The fourth proportional to 8,619.09, 12,823.73 and 8,589.93 is: 12,780.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.09 : 12,823.73 = 8,589.93 : x
  2. Step 2: Convert to fraction form
    8,619.09/12,823.73 = 8,589.93/x
  3. Step 3: Cross multiply
    8,619.09x = 12,823.73 × 8,589.93
  4. Step 4: Simplify right side
    8,619.09x = 110,154,900.09
  5. Step 5: Solve for x
    x = 110,154,900.09/8,619.09
  6. Step 6: Final answer
    x = 12,780.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.