Home / 9,790.95-13,511.31-5,541.84

Finding the Fourth Proportional to 9,790.95, 13,511.31 and 5,541.84

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Solution

The fourth proportional to 9,790.95, 13,511.31 and 5,541.84 is: 7,647.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,790.95 : 13,511.31 = 5,541.84 : x
  2. Step 2: Convert to fraction form
    9,790.95/13,511.31 = 5,541.84/x
  3. Step 3: Cross multiply
    9,790.95x = 13,511.31 × 5,541.84
  4. Step 4: Simplify right side
    9,790.95x = 74,877,518.21
  5. Step 5: Solve for x
    x = 74,877,518.21/9,790.95
  6. Step 6: Final answer
    x = 7,647.63

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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.