Home / 10,968.12-16,442.10-4,390.20

Finding the Fourth Proportional to 10,968.12, 16,442.10 and 4,390.20

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Solution

The fourth proportional to 10,968.12, 16,442.10 and 4,390.20 is: 6,581.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,968.12 : 16,442.10 = 4,390.20 : x
  2. Step 2: Convert to fraction form
    10,968.12/16,442.10 = 4,390.20/x
  3. Step 3: Cross multiply
    10,968.12x = 16,442.10 × 4,390.20
  4. Step 4: Simplify right side
    10,968.12x = 72,184,107.42
  5. Step 5: Solve for x
    x = 72,184,107.42/10,968.12
  6. Step 6: Final answer
    x = 6,581.27

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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.