Home / 11,812.40-17,718.60-5,570.36

Finding the Fourth Proportional to 11,812.40, 17,718.60 and 5,570.36

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Solution

The fourth proportional to 11,812.40, 17,718.60 and 5,570.36 is: 8,355.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,812.40 : 17,718.60 = 5,570.36 : x
  2. Step 2: Convert to fraction form
    11,812.40/17,718.60 = 5,570.36/x
  3. Step 3: Cross multiply
    11,812.40x = 17,718.60 × 5,570.36
  4. Step 4: Simplify right side
    11,812.40x = 98,698,980.70
  5. Step 5: Solve for x
    x = 98,698,980.70/11,812.40
  6. Step 6: Final answer
    x = 8,355.54

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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.