Home / 14,604.90-21,879.64-8,669.23

Finding the Fourth Proportional to 14,604.90, 21,879.64 and 8,669.23

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Solution

The fourth proportional to 14,604.90, 21,879.64 and 8,669.23 is: 12,987.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,604.90 : 21,879.64 = 8,669.23 : x
  2. Step 2: Convert to fraction form
    14,604.90/21,879.64 = 8,669.23/x
  3. Step 3: Cross multiply
    14,604.90x = 21,879.64 × 8,669.23
  4. Step 4: Simplify right side
    14,604.90x = 189,679,631.48
  5. Step 5: Solve for x
    x = 189,679,631.48/14,604.90
  6. Step 6: Final answer
    x = 12,987.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.