Home / 11,621.66-16,038.05-6,316.47

Finding the Fourth Proportional to 11,621.66, 16,038.05 and 6,316.47

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Solution

The fourth proportional to 11,621.66, 16,038.05 and 6,316.47 is: 8,716.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,621.66 : 16,038.05 = 6,316.47 : x
  2. Step 2: Convert to fraction form
    11,621.66/16,038.05 = 6,316.47/x
  3. Step 3: Cross multiply
    11,621.66x = 16,038.05 × 6,316.47
  4. Step 4: Simplify right side
    11,621.66x = 101,303,830.10
  5. Step 5: Solve for x
    x = 101,303,830.10/11,621.66
  6. Step 6: Final answer
    x = 8,716.82

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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.