Home / 8,811.54-12,158.64-5,274

Finding the Fourth Proportional to 8,811.54, 12,158.64 and 5,274

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Solution

The fourth proportional to 8,811.54, 12,158.64 and 5,274 is: 7,277.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,811.54 : 12,158.64 = 5,274 : x
  2. Step 2: Convert to fraction form
    8,811.54/12,158.64 = 5,274/x
  3. Step 3: Cross multiply
    8,811.54x = 12,158.64 × 5,274
  4. Step 4: Simplify right side
    8,811.54x = 64,124,667.36
  5. Step 5: Solve for x
    x = 64,124,667.36/8,811.54
  6. Step 6: Final answer
    x = 7,277.35

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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.