Home / 11,133.60-15,362.40-6,416.97

Finding the Fourth Proportional to 11,133.60, 15,362.40 and 6,416.97

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Solution

The fourth proportional to 11,133.60, 15,362.40 and 6,416.97 is: 8,854.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.60 : 15,362.40 = 6,416.97 : x
  2. Step 2: Convert to fraction form
    11,133.60/15,362.40 = 6,416.97/x
  3. Step 3: Cross multiply
    11,133.60x = 15,362.40 × 6,416.97
  4. Step 4: Simplify right side
    11,133.60x = 98,580,059.93
  5. Step 5: Solve for x
    x = 98,580,059.93/11,133.60
  6. Step 6: Final answer
    x = 8,854.28

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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.