Home / 11,113.50-16,663.88-5,270.16

Finding the Fourth Proportional to 11,113.50, 16,663.88 and 5,270.16

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Solution

The fourth proportional to 11,113.50, 16,663.88 and 5,270.16 is: 7,902.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.50 : 16,663.88 = 5,270.16 : x
  2. Step 2: Convert to fraction form
    11,113.50/16,663.88 = 5,270.16/x
  3. Step 3: Cross multiply
    11,113.50x = 16,663.88 × 5,270.16
  4. Step 4: Simplify right side
    11,113.50x = 87,821,313.82
  5. Step 5: Solve for x
    x = 87,821,313.82/11,113.50
  6. Step 6: Final answer
    x = 7,902.22

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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.