Home / 16,289.12-24,435.12-8,890.40

Finding the Fourth Proportional to 16,289.12, 24,435.12 and 8,890.40

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Solution

The fourth proportional to 16,289.12, 24,435.12 and 8,890.40 is: 13,336.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,289.12 : 24,435.12 = 8,890.40 : x
  2. Step 2: Convert to fraction form
    16,289.12/24,435.12 = 8,890.40/x
  3. Step 3: Cross multiply
    16,289.12x = 24,435.12 × 8,890.40
  4. Step 4: Simplify right side
    16,289.12x = 217,237,990.85
  5. Step 5: Solve for x
    x = 217,237,990.85/16,289.12
  6. Step 6: Final answer
    x = 13,336.39

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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.