Home / 7,239.30-10,858.88-5,787.65

Finding the Fourth Proportional to 7,239.30, 10,858.88 and 5,787.65

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Solution

The fourth proportional to 7,239.30, 10,858.88 and 5,787.65 is: 8,681.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239.30 : 10,858.88 = 5,787.65 : x
  2. Step 2: Convert to fraction form
    7,239.30/10,858.88 = 5,787.65/x
  3. Step 3: Cross multiply
    7,239.30x = 10,858.88 × 5,787.65
  4. Step 4: Simplify right side
    7,239.30x = 62,847,313.60
  5. Step 5: Solve for x
    x = 62,847,313.60/7,239.30
  6. Step 6: Final answer
    x = 8,681.41

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1.5x scale

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.