Home / 7,856.88-10,842.46-4,671.75

Finding the Fourth Proportional to 7,856.88, 10,842.46 and 4,671.75

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Solution

The fourth proportional to 7,856.88, 10,842.46 and 4,671.75 is: 6,446.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,856.88 : 10,842.46 = 4,671.75 : x
  2. Step 2: Convert to fraction form
    7,856.88/10,842.46 = 4,671.75/x
  3. Step 3: Cross multiply
    7,856.88x = 10,842.46 × 4,671.75
  4. Step 4: Simplify right side
    7,856.88x = 50,653,262.51
  5. Step 5: Solve for x
    x = 50,653,262.51/7,856.88
  6. Step 6: Final answer
    x = 6,446.99

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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.