Home / 6,386.67-8,816.70-4,263.45

Finding the Fourth Proportional to 6,386.67, 8,816.70 and 4,263.45

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Solution

The fourth proportional to 6,386.67, 8,816.70 and 4,263.45 is: 5,885.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.67 : 8,816.70 = 4,263.45 : x
  2. Step 2: Convert to fraction form
    6,386.67/8,816.70 = 4,263.45/x
  3. Step 3: Cross multiply
    6,386.67x = 8,816.70 × 4,263.45
  4. Step 4: Simplify right side
    6,386.67x = 37,589,559.62
  5. Step 5: Solve for x
    x = 37,589,559.62/6,386.67
  6. Step 6: Final answer
    x = 5,885.63

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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.