Home / 7,813.07-10,782.68-4,456.02

Finding the Fourth Proportional to 7,813.07, 10,782.68 and 4,456.02

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Solution

The fourth proportional to 7,813.07, 10,782.68 and 4,456.02 is: 6,149.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,813.07 : 10,782.68 = 4,456.02 : x
  2. Step 2: Convert to fraction form
    7,813.07/10,782.68 = 4,456.02/x
  3. Step 3: Cross multiply
    7,813.07x = 10,782.68 × 4,456.02
  4. Step 4: Simplify right side
    7,813.07x = 48,047,815.45
  5. Step 5: Solve for x
    x = 48,047,815.45/7,813.07
  6. Step 6: Final answer
    x = 6,149.68

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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.