Home / 6,916.95-10,377.18-1,986.93

Finding the Fourth Proportional to 6,916.95, 10,377.18 and 1,986.93

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Solution

The fourth proportional to 6,916.95, 10,377.18 and 1,986.93 is: 2,980.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,916.95 : 10,377.18 = 1,986.93 : x
  2. Step 2: Convert to fraction form
    6,916.95/10,377.18 = 1,986.93/x
  3. Step 3: Cross multiply
    6,916.95x = 10,377.18 × 1,986.93
  4. Step 4: Simplify right side
    6,916.95x = 20,618,730.26
  5. Step 5: Solve for x
    x = 20,618,730.26/6,916.95
  6. Step 6: Final answer
    x = 2,980.90

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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.