Home / 6,386.73-8,810.61-4,118.93

Finding the Fourth Proportional to 6,386.73, 8,810.61 and 4,118.93

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Solution

The fourth proportional to 6,386.73, 8,810.61 and 4,118.93 is: 5,682.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.73 : 8,810.61 = 4,118.93 : x
  2. Step 2: Convert to fraction form
    6,386.73/8,810.61 = 4,118.93/x
  3. Step 3: Cross multiply
    6,386.73x = 8,810.61 × 4,118.93
  4. Step 4: Simplify right side
    6,386.73x = 36,290,285.85
  5. Step 5: Solve for x
    x = 36,290,285.85/6,386.73
  6. Step 6: Final answer
    x = 5,682.14

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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.