Home / 10,975.28-16,458.80-3,953.40

Finding the Fourth Proportional to 10,975.28, 16,458.80 and 3,953.40

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Solution

The fourth proportional to 10,975.28, 16,458.80 and 3,953.40 is: 5,928.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,975.28 : 16,458.80 = 3,953.40 : x
  2. Step 2: Convert to fraction form
    10,975.28/16,458.80 = 3,953.40/x
  3. Step 3: Cross multiply
    10,975.28x = 16,458.80 × 3,953.40
  4. Step 4: Simplify right side
    10,975.28x = 65,068,219.92
  5. Step 5: Solve for x
    x = 65,068,219.92/10,975.28
  6. Step 6: Final answer
    x = 5,928.62

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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.