Home / 10,746.40-16,121.20-2,955.36

Finding the Fourth Proportional to 10,746.40, 16,121.20 and 2,955.36

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Solution

The fourth proportional to 10,746.40, 16,121.20 and 2,955.36 is: 4,433.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,746.40 : 16,121.20 = 2,955.36 : x
  2. Step 2: Convert to fraction form
    10,746.40/16,121.20 = 2,955.36/x
  3. Step 3: Cross multiply
    10,746.40x = 16,121.20 × 2,955.36
  4. Step 4: Simplify right side
    10,746.40x = 47,643,949.63
  5. Step 5: Solve for x
    x = 47,643,949.63/10,746.40
  6. Step 6: Final answer
    x = 4,433.48

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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.