Home / 7,856.20-11,786.34-2,926.32

Finding the Fourth Proportional to 7,856.20, 11,786.34 and 2,926.32

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Solution

The fourth proportional to 7,856.20, 11,786.34 and 2,926.32 is: 4,390.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,856.20 : 11,786.34 = 2,926.32 : x
  2. Step 2: Convert to fraction form
    7,856.20/11,786.34 = 2,926.32/x
  3. Step 3: Cross multiply
    7,856.20x = 11,786.34 × 2,926.32
  4. Step 4: Simplify right side
    7,856.20x = 34,490,602.47
  5. Step 5: Solve for x
    x = 34,490,602.47/7,856.20
  6. Step 6: Final answer
    x = 4,390.24

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1.5x scale

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.