Home / 7,857.02-10,851.15-4,879.93

Finding the Fourth Proportional to 7,857.02, 10,851.15 and 4,879.93

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Solution

The fourth proportional to 7,857.02, 10,851.15 and 4,879.93 is: 6,739.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,857.02 : 10,851.15 = 4,879.93 : x
  2. Step 2: Convert to fraction form
    7,857.02/10,851.15 = 4,879.93/x
  3. Step 3: Cross multiply
    7,857.02x = 10,851.15 × 4,879.93
  4. Step 4: Simplify right side
    7,857.02x = 52,952,852.42
  5. Step 5: Solve for x
    x = 52,952,852.42/7,857.02
  6. Step 6: Final answer
    x = 6,739.56

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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.