Home / 10,738.64-16,109.16-2,947.28

Finding the Fourth Proportional to 10,738.64, 16,109.16 and 2,947.28

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Solution

The fourth proportional to 10,738.64, 16,109.16 and 2,947.28 is: 4,421.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,738.64 : 16,109.16 = 2,947.28 : x
  2. Step 2: Convert to fraction form
    10,738.64/16,109.16 = 2,947.28/x
  3. Step 3: Cross multiply
    10,738.64x = 16,109.16 × 2,947.28
  4. Step 4: Simplify right side
    10,738.64x = 47,478,205.08
  5. Step 5: Solve for x
    x = 47,478,205.08/10,738.64
  6. Step 6: Final answer
    x = 4,421.25

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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.