Home / 7,916.81-11,877.21-2,370.13

Finding the Fourth Proportional to 7,916.81, 11,877.21 and 2,370.13

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Solution

The fourth proportional to 7,916.81, 11,877.21 and 2,370.13 is: 3,555.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,916.81 : 11,877.21 = 2,370.13 : x
  2. Step 2: Convert to fraction form
    7,916.81/11,877.21 = 2,370.13/x
  3. Step 3: Cross multiply
    7,916.81x = 11,877.21 × 2,370.13
  4. Step 4: Simplify right side
    7,916.81x = 28,150,502.04
  5. Step 5: Solve for x
    x = 28,150,502.04/7,916.81
  6. Step 6: Final answer
    x = 3,555.79

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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.