Home / 10,856.70-14,982.56-6,140.88

Finding the Fourth Proportional to 10,856.70, 14,982.56 and 6,140.88

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Solution

The fourth proportional to 10,856.70, 14,982.56 and 6,140.88 is: 8,474.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,856.70 : 14,982.56 = 6,140.88 : x
  2. Step 2: Convert to fraction form
    10,856.70/14,982.56 = 6,140.88/x
  3. Step 3: Cross multiply
    10,856.70x = 14,982.56 × 6,140.88
  4. Step 4: Simplify right side
    10,856.70x = 92,006,103.05
  5. Step 5: Solve for x
    x = 92,006,103.05/10,856.70
  6. Step 6: Final answer
    x = 8,474.59

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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.