Home / 11,461.20-15,809.64-6,744.48

Finding the Fourth Proportional to 11,461.20, 15,809.64 and 6,744.48

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Solution

The fourth proportional to 11,461.20, 15,809.64 and 6,744.48 is: 9,303.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,461.20 : 15,809.64 = 6,744.48 : x
  2. Step 2: Convert to fraction form
    11,461.20/15,809.64 = 6,744.48/x
  3. Step 3: Cross multiply
    11,461.20x = 15,809.64 × 6,744.48
  4. Step 4: Simplify right side
    11,461.20x = 106,627,800.79
  5. Step 5: Solve for x
    x = 106,627,800.79/11,461.20
  6. Step 6: Final answer
    x = 9,303.37

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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.