Home / 10,928.64-15,080.70-6,212

Finding the Fourth Proportional to 10,928.64, 15,080.70 and 6,212

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Solution

The fourth proportional to 10,928.64, 15,080.70 and 6,212 is: 8,572.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,928.64 : 15,080.70 = 6,212 : x
  2. Step 2: Convert to fraction form
    10,928.64/15,080.70 = 6,212/x
  3. Step 3: Cross multiply
    10,928.64x = 15,080.70 × 6,212
  4. Step 4: Simplify right side
    10,928.64x = 93,681,308.40
  5. Step 5: Solve for x
    x = 93,681,308.40/10,928.64
  6. Step 6: Final answer
    x = 8,572.09

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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.