Home / 12,116.70-18,162.90-5,547.60

Finding the Fourth Proportional to 12,116.70, 18,162.90 and 5,547.60

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Solution

The fourth proportional to 12,116.70, 18,162.90 and 5,547.60 is: 8,315.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,116.70 : 18,162.90 = 5,547.60 : x
  2. Step 2: Convert to fraction form
    12,116.70/18,162.90 = 5,547.60/x
  3. Step 3: Cross multiply
    12,116.70x = 18,162.90 × 5,547.60
  4. Step 4: Simplify right side
    12,116.70x = 100,760,504.04
  5. Step 5: Solve for x
    x = 100,760,504.04/12,116.70
  6. Step 6: Final answer
    x = 8,315.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.