Home / 11,142.36-16,707.06-4,217.40

Finding the Fourth Proportional to 11,142.36, 16,707.06 and 4,217.40

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Solution

The fourth proportional to 11,142.36, 16,707.06 and 4,217.40 is: 6,323.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,142.36 : 16,707.06 = 4,217.40 : x
  2. Step 2: Convert to fraction form
    11,142.36/16,707.06 = 4,217.40/x
  3. Step 3: Cross multiply
    11,142.36x = 16,707.06 × 4,217.40
  4. Step 4: Simplify right side
    11,142.36x = 70,460,354.84
  5. Step 5: Solve for x
    x = 70,460,354.84/11,142.36
  6. Step 6: Final answer
    x = 6,323.65

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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.