Home / 8,911.18-12,295.66-4,931.54

Finding the Fourth Proportional to 8,911.18, 12,295.66 and 4,931.54

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Solution

The fourth proportional to 8,911.18, 12,295.66 and 4,931.54 is: 6,804.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,911.18 : 12,295.66 = 4,931.54 : x
  2. Step 2: Convert to fraction form
    8,911.18/12,295.66 = 4,931.54/x
  3. Step 3: Cross multiply
    8,911.18x = 12,295.66 × 4,931.54
  4. Step 4: Simplify right side
    8,911.18x = 60,636,539.12
  5. Step 5: Solve for x
    x = 60,636,539.12/8,911.18
  6. Step 6: Final answer
    x = 6,804.55

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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.