Home / 10,879.02-16,316.10-5,326.80

Finding the Fourth Proportional to 10,879.02, 16,316.10 and 5,326.80

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Solution

The fourth proportional to 10,879.02, 16,316.10 and 5,326.80 is: 7,989.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,879.02 : 16,316.10 = 5,326.80 : x
  2. Step 2: Convert to fraction form
    10,879.02/16,316.10 = 5,326.80/x
  3. Step 3: Cross multiply
    10,879.02x = 16,316.10 × 5,326.80
  4. Step 4: Simplify right side
    10,879.02x = 86,912,601.48
  5. Step 5: Solve for x
    x = 86,912,601.48/10,879.02
  6. Step 6: Final answer
    x = 7,989.01

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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.