Home / 8,538.50-11,776.44-5,555.28

Finding the Fourth Proportional to 8,538.50, 11,776.44 and 5,555.28

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Solution

The fourth proportional to 8,538.50, 11,776.44 and 5,555.28 is: 7,661.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,538.50 : 11,776.44 = 5,555.28 : x
  2. Step 2: Convert to fraction form
    8,538.50/11,776.44 = 5,555.28/x
  3. Step 3: Cross multiply
    8,538.50x = 11,776.44 × 5,555.28
  4. Step 4: Simplify right side
    8,538.50x = 65,421,421.60
  5. Step 5: Solve for x
    x = 65,421,421.60/8,538.50
  6. Step 6: Final answer
    x = 7,661.93

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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.