Home / 11,621.72-16,038.02-6,316.62

Finding the Fourth Proportional to 11,621.72, 16,038.02 and 6,316.62

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Solution

The fourth proportional to 11,621.72, 16,038.02 and 6,316.62 is: 8,716.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,621.72 : 16,038.02 = 6,316.62 : x
  2. Step 2: Convert to fraction form
    11,621.72/16,038.02 = 6,316.62/x
  3. Step 3: Cross multiply
    11,621.72x = 16,038.02 × 6,316.62
  4. Step 4: Simplify right side
    11,621.72x = 101,306,077.89
  5. Step 5: Solve for x
    x = 101,306,077.89/11,621.72
  6. Step 6: Final answer
    x = 8,716.96

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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.