Home / 9,790.91-13,511.76-5,541.65

Finding the Fourth Proportional to 9,790.91, 13,511.76 and 5,541.65

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Solution

The fourth proportional to 9,790.91, 13,511.76 and 5,541.65 is: 7,647.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,790.91 : 13,511.76 = 5,541.65 : x
  2. Step 2: Convert to fraction form
    9,790.91/13,511.76 = 5,541.65/x
  3. Step 3: Cross multiply
    9,790.91x = 13,511.76 × 5,541.65
  4. Step 4: Simplify right side
    9,790.91x = 74,877,438.30
  5. Step 5: Solve for x
    x = 74,877,438.30/9,790.91
  6. Step 6: Final answer
    x = 7,647.65

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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.