Home / 9,787.41-13,506.57-5,311.08

Finding the Fourth Proportional to 9,787.41, 13,506.57 and 5,311.08

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Solution

The fourth proportional to 9,787.41, 13,506.57 and 5,311.08 is: 7,329.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,787.41 : 13,506.57 = 5,311.08 : x
  2. Step 2: Convert to fraction form
    9,787.41/13,506.57 = 5,311.08/x
  3. Step 3: Cross multiply
    9,787.41x = 13,506.57 × 5,311.08
  4. Step 4: Simplify right side
    9,787.41x = 71,734,473.80
  5. Step 5: Solve for x
    x = 71,734,473.80/9,787.41
  6. Step 6: Final answer
    x = 7,329.26

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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.