Home / 8,016.42-11,052.54-5,178.99

Finding the Fourth Proportional to 8,016.42, 11,052.54 and 5,178.99

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Solution

The fourth proportional to 8,016.42, 11,052.54 and 5,178.99 is: 7,140.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,016.42 : 11,052.54 = 5,178.99 : x
  2. Step 2: Convert to fraction form
    8,016.42/11,052.54 = 5,178.99/x
  3. Step 3: Cross multiply
    8,016.42x = 11,052.54 × 5,178.99
  4. Step 4: Simplify right side
    8,016.42x = 57,240,994.13
  5. Step 5: Solve for x
    x = 57,240,994.13/8,016.42
  6. Step 6: Final answer
    x = 7,140.47

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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.