Home / 6,386.65-9,570.20-2,686.87

Finding the Fourth Proportional to 6,386.65, 9,570.20 and 2,686.87

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Solution

The fourth proportional to 6,386.65, 9,570.20 and 2,686.87 is: 4,026.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.65 : 9,570.20 = 2,686.87 : x
  2. Step 2: Convert to fraction form
    6,386.65/9,570.20 = 2,686.87/x
  3. Step 3: Cross multiply
    6,386.65x = 9,570.20 × 2,686.87
  4. Step 4: Simplify right side
    6,386.65x = 25,713,896.92
  5. Step 5: Solve for x
    x = 25,713,896.92/6,386.65
  6. Step 6: Final answer
    x = 4,026.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.