Home / 11,520.14-15,897.84-6,804.74

Finding the Fourth Proportional to 11,520.14, 15,897.84 and 6,804.74

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Solution

The fourth proportional to 11,520.14, 15,897.84 and 6,804.74 is: 9,390.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,520.14 : 15,897.84 = 6,804.74 : x
  2. Step 2: Convert to fraction form
    11,520.14/15,897.84 = 6,804.74/x
  3. Step 3: Cross multiply
    11,520.14x = 15,897.84 × 6,804.74
  4. Step 4: Simplify right side
    11,520.14x = 108,180,667.76
  5. Step 5: Solve for x
    x = 108,180,667.76/11,520.14
  6. Step 6: Final answer
    x = 9,390.57

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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.