Home / 11,990.12-16,547.36-6,684.21

Finding the Fourth Proportional to 11,990.12, 16,547.36 and 6,684.21

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Solution

The fourth proportional to 11,990.12, 16,547.36 and 6,684.21 is: 9,224.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.12 : 16,547.36 = 6,684.21 : x
  2. Step 2: Convert to fraction form
    11,990.12/16,547.36 = 6,684.21/x
  3. Step 3: Cross multiply
    11,990.12x = 16,547.36 × 6,684.21
  4. Step 4: Simplify right side
    11,990.12x = 110,605,995.76
  5. Step 5: Solve for x
    x = 110,605,995.76/11,990.12
  6. Step 6: Final answer
    x = 9,224.77

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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.