Home / 7,856.90-10,844.81-4,672.43

Finding the Fourth Proportional to 7,856.90, 10,844.81 and 4,672.43

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Solution

The fourth proportional to 7,856.90, 10,844.81 and 4,672.43 is: 6,449.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,856.90 : 10,844.81 = 4,672.43 : x
  2. Step 2: Convert to fraction form
    7,856.90/10,844.81 = 4,672.43/x
  3. Step 3: Cross multiply
    7,856.90x = 10,844.81 × 4,672.43
  4. Step 4: Simplify right side
    7,856.90x = 50,671,652.98
  5. Step 5: Solve for x
    x = 50,671,652.98/7,856.90
  6. Step 6: Final answer
    x = 6,449.32

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1.5x scale

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.