Home / 6,386.27-8,812.53-3,553.65

Finding the Fourth Proportional to 6,386.27, 8,812.53 and 3,553.65

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Solution

The fourth proportional to 6,386.27, 8,812.53 and 3,553.65 is: 4,903.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.27 : 8,812.53 = 3,553.65 : x
  2. Step 2: Convert to fraction form
    6,386.27/8,812.53 = 3,553.65/x
  3. Step 3: Cross multiply
    6,386.27x = 8,812.53 × 3,553.65
  4. Step 4: Simplify right side
    6,386.27x = 31,316,647.23
  5. Step 5: Solve for x
    x = 31,316,647.23/6,386.27
  6. Step 6: Final answer
    x = 4,903.75

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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.