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Finding the Fourth Proportional to 6,386.93, 8,811.51 and 4,712.33

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Solution

The fourth proportional to 6,386.93, 8,811.51 and 4,712.33 is: 6,501.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.93 : 8,811.51 = 4,712.33 : x
  2. Step 2: Convert to fraction form
    6,386.93/8,811.51 = 4,712.33/x
  3. Step 3: Cross multiply
    6,386.93x = 8,811.51 × 4,712.33
  4. Step 4: Simplify right side
    6,386.93x = 41,522,710.96
  5. Step 5: Solve for x
    x = 41,522,710.96/6,386.93
  6. Step 6: Final answer
    x = 6,501.20

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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.