Home / 6,916.65-10,375.44-1,986.18

Finding the Fourth Proportional to 6,916.65, 10,375.44 and 1,986.18

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Solution

The fourth proportional to 6,916.65, 10,375.44 and 1,986.18 is: 2,979.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,916.65 : 10,375.44 = 1,986.18 : x
  2. Step 2: Convert to fraction form
    6,916.65/10,375.44 = 1,986.18/x
  3. Step 3: Cross multiply
    6,916.65x = 10,375.44 × 1,986.18
  4. Step 4: Simplify right side
    6,916.65x = 20,607,491.42
  5. Step 5: Solve for x
    x = 20,607,491.42/6,916.65
  6. Step 6: Final answer
    x = 2,979.40

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1.5x scale

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.