Home / 11,125.12-16,688.16-4,200.16

Finding the Fourth Proportional to 11,125.12, 16,688.16 and 4,200.16

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Solution

The fourth proportional to 11,125.12, 16,688.16 and 4,200.16 is: 6,300.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,125.12 : 16,688.16 = 4,200.16 : x
  2. Step 2: Convert to fraction form
    11,125.12/16,688.16 = 4,200.16/x
  3. Step 3: Cross multiply
    11,125.12x = 16,688.16 × 4,200.16
  4. Step 4: Simplify right side
    11,125.12x = 70,092,942.11
  5. Step 5: Solve for x
    x = 70,092,942.11/11,125.12
  6. Step 6: Final answer
    x = 6,300.42

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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.