Home / 11,926.65-16,458.80-6,621.33

Finding the Fourth Proportional to 11,926.65, 16,458.80 and 6,621.33

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Solution

The fourth proportional to 11,926.65, 16,458.80 and 6,621.33 is: 9,137.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,926.65 : 16,458.80 = 6,621.33 : x
  2. Step 2: Convert to fraction form
    11,926.65/16,458.80 = 6,621.33/x
  3. Step 3: Cross multiply
    11,926.65x = 16,458.80 × 6,621.33
  4. Step 4: Simplify right side
    11,926.65x = 108,979,113.10
  5. Step 5: Solve for x
    x = 108,979,113.10/11,926.65
  6. Step 6: Final answer
    x = 9,137.45

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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.