Home / 13,234.32-18,260.55-7,856.58

Finding the Fourth Proportional to 13,234.32, 18,260.55 and 7,856.58

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Solution

The fourth proportional to 13,234.32, 18,260.55 and 7,856.58 is: 10,840.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,234.32 : 18,260.55 = 7,856.58 : x
  2. Step 2: Convert to fraction form
    13,234.32/18,260.55 = 7,856.58/x
  3. Step 3: Cross multiply
    13,234.32x = 18,260.55 × 7,856.58
  4. Step 4: Simplify right side
    13,234.32x = 143,465,471.92
  5. Step 5: Solve for x
    x = 143,465,471.92/13,234.32
  6. Step 6: Final answer
    x = 10,840.41

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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.