Home / 11,227.64-15,485.04-9,880.36

Finding the Fourth Proportional to 11,227.64, 15,485.04 and 9,880.36

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Solution

The fourth proportional to 11,227.64, 15,485.04 and 9,880.36 is: 13,626.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,227.64 : 15,485.04 = 9,880.36 : x
  2. Step 2: Convert to fraction form
    11,227.64/15,485.04 = 9,880.36/x
  3. Step 3: Cross multiply
    11,227.64x = 15,485.04 × 9,880.36
  4. Step 4: Simplify right side
    11,227.64x = 152,997,769.81
  5. Step 5: Solve for x
    x = 152,997,769.81/11,227.64
  6. Step 6: Final answer
    x = 13,626.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.