Home / 8,277.76-11,421.66-5,291.32

Finding the Fourth Proportional to 8,277.76, 11,421.66 and 5,291.32

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Solution

The fourth proportional to 8,277.76, 11,421.66 and 5,291.32 is: 7,300.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,277.76 : 11,421.66 = 5,291.32 : x
  2. Step 2: Convert to fraction form
    8,277.76/11,421.66 = 5,291.32/x
  3. Step 3: Cross multiply
    8,277.76x = 11,421.66 × 5,291.32
  4. Step 4: Simplify right side
    8,277.76x = 60,435,657.99
  5. Step 5: Solve for x
    x = 60,435,657.99/8,277.76
  6. Step 6: Final answer
    x = 7,300.97

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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.