Home / 7,835.25-10,815.08-5,040.75

Finding the Fourth Proportional to 7,835.25, 10,815.08 and 5,040.75

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Solution

The fourth proportional to 7,835.25, 10,815.08 and 5,040.75 is: 6,957.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,835.25 : 10,815.08 = 5,040.75 : x
  2. Step 2: Convert to fraction form
    7,835.25/10,815.08 = 5,040.75/x
  3. Step 3: Cross multiply
    7,835.25x = 10,815.08 × 5,040.75
  4. Step 4: Simplify right side
    7,835.25x = 54,516,089.31
  5. Step 5: Solve for x
    x = 54,516,089.31/7,835.25
  6. Step 6: Final answer
    x = 6,957.80

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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.