Home / 11,753.36-16,219.64-6,448.20

Finding the Fourth Proportional to 11,753.36, 16,219.64 and 6,448.20

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Solution

The fourth proportional to 11,753.36, 16,219.64 and 6,448.20 is: 8,898.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,753.36 : 16,219.64 = 6,448.20 : x
  2. Step 2: Convert to fraction form
    11,753.36/16,219.64 = 6,448.20/x
  3. Step 3: Cross multiply
    11,753.36x = 16,219.64 × 6,448.20
  4. Step 4: Simplify right side
    11,753.36x = 104,587,482.65
  5. Step 5: Solve for x
    x = 104,587,482.65/11,753.36
  6. Step 6: Final answer
    x = 8,898.52

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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.