Home / 11,021.12-16,509.33-8,803.74

Finding the Fourth Proportional to 11,021.12, 16,509.33 and 8,803.74

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Solution

The fourth proportional to 11,021.12, 16,509.33 and 8,803.74 is: 13,187.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,021.12 : 16,509.33 = 8,803.74 : x
  2. Step 2: Convert to fraction form
    11,021.12/16,509.33 = 8,803.74/x
  3. Step 3: Cross multiply
    11,021.12x = 16,509.33 × 8,803.74
  4. Step 4: Simplify right side
    11,021.12x = 145,343,848.89
  5. Step 5: Solve for x
    x = 145,343,848.89/11,021.12
  6. Step 6: Final answer
    x = 13,187.76

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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.