Home / 11,990.63-16,547.64-6,685.44

Finding the Fourth Proportional to 11,990.63, 16,547.64 and 6,685.44

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Solution

The fourth proportional to 11,990.63, 16,547.64 and 6,685.44 is: 9,226.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.63 : 16,547.64 = 6,685.44 : x
  2. Step 2: Convert to fraction form
    11,990.63/16,547.64 = 6,685.44/x
  3. Step 3: Cross multiply
    11,990.63x = 16,547.64 × 6,685.44
  4. Step 4: Simplify right side
    11,990.63x = 110,628,254.36
  5. Step 5: Solve for x
    x = 110,628,254.36/11,990.63
  6. Step 6: Final answer
    x = 9,226.23

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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.