Home / 11,595.09-16,000.80-6,289.80

Finding the Fourth Proportional to 11,595.09, 16,000.80 and 6,289.80

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Solution

The fourth proportional to 11,595.09, 16,000.80 and 6,289.80 is: 8,679.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,595.09 : 16,000.80 = 6,289.80 : x
  2. Step 2: Convert to fraction form
    11,595.09/16,000.80 = 6,289.80/x
  3. Step 3: Cross multiply
    11,595.09x = 16,000.80 × 6,289.80
  4. Step 4: Simplify right side
    11,595.09x = 100,641,831.84
  5. Step 5: Solve for x
    x = 100,641,831.84/11,595.09
  6. Step 6: Final answer
    x = 8,679.69

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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.