Home / 11,487.03-15,856.48-11,171.02

Finding the Fourth Proportional to 11,487.03, 15,856.48 and 11,171.02

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Solution

The fourth proportional to 11,487.03, 15,856.48 and 11,171.02 is: 15,420.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,487.03 : 15,856.48 = 11,171.02 : x
  2. Step 2: Convert to fraction form
    11,487.03/15,856.48 = 11,171.02/x
  3. Step 3: Cross multiply
    11,487.03x = 15,856.48 × 11,171.02
  4. Step 4: Simplify right side
    11,487.03x = 177,133,055.21
  5. Step 5: Solve for x
    x = 177,133,055.21/11,487.03
  6. Step 6: Final answer
    x = 15,420.27

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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.