Home / 11,449.32-15,809.21-7,624.70

Finding the Fourth Proportional to 11,449.32, 15,809.21 and 7,624.70

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Solution

The fourth proportional to 11,449.32, 15,809.21 and 7,624.70 is: 10,528.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,449.32 : 15,809.21 = 7,624.70 : x
  2. Step 2: Convert to fraction form
    11,449.32/15,809.21 = 7,624.70/x
  3. Step 3: Cross multiply
    11,449.32x = 15,809.21 × 7,624.70
  4. Step 4: Simplify right side
    11,449.32x = 120,540,366.32
  5. Step 5: Solve for x
    x = 120,540,366.32/11,449.32
  6. Step 6: Final answer
    x = 10,528.17

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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.