Home / 8,455.75-11,666.61-5,269.56

Finding the Fourth Proportional to 8,455.75, 11,666.61 and 5,269.56

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Solution

The fourth proportional to 8,455.75, 11,666.61 and 5,269.56 is: 7,270.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.75 : 11,666.61 = 5,269.56 : x
  2. Step 2: Convert to fraction form
    8,455.75/11,666.61 = 5,269.56/x
  3. Step 3: Cross multiply
    8,455.75x = 11,666.61 × 5,269.56
  4. Step 4: Simplify right side
    8,455.75x = 61,477,875.04
  5. Step 5: Solve for x
    x = 61,477,875.04/8,455.75
  6. Step 6: Final answer
    x = 7,270.54

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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.