Home / 10,879.08-16,298.10-8,915.64

Finding the Fourth Proportional to 10,879.08, 16,298.10 and 8,915.64

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Solution

The fourth proportional to 10,879.08, 16,298.10 and 8,915.64 is: 13,356.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,879.08 : 16,298.10 = 8,915.64 : x
  2. Step 2: Convert to fraction form
    10,879.08/16,298.10 = 8,915.64/x
  3. Step 3: Cross multiply
    10,879.08x = 16,298.10 × 8,915.64
  4. Step 4: Simplify right side
    10,879.08x = 145,307,992.28
  5. Step 5: Solve for x
    x = 145,307,992.28/10,879.08
  6. Step 6: Final answer
    x = 13,356.64

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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.