Home / 11,948.77-16,489.38-6,643.63

Finding the Fourth Proportional to 11,948.77, 16,489.38 and 6,643.63

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Solution

The fourth proportional to 11,948.77, 16,489.38 and 6,643.63 is: 9,168.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,948.77 : 16,489.38 = 6,643.63 : x
  2. Step 2: Convert to fraction form
    11,948.77/16,489.38 = 6,643.63/x
  3. Step 3: Cross multiply
    11,948.77x = 16,489.38 × 6,643.63
  4. Step 4: Simplify right side
    11,948.77x = 109,549,339.65
  5. Step 5: Solve for x
    x = 109,549,339.65/11,948.77
  6. Step 6: Final answer
    x = 9,168.25

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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.