Home / 6,856.10-10,276.05-5,122.70

Finding the Fourth Proportional to 6,856.10, 10,276.05 and 5,122.70

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Solution

The fourth proportional to 6,856.10, 10,276.05 and 5,122.70 is: 7,678.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,856.10 : 10,276.05 = 5,122.70 : x
  2. Step 2: Convert to fraction form
    6,856.10/10,276.05 = 5,122.70/x
  3. Step 3: Cross multiply
    6,856.10x = 10,276.05 × 5,122.70
  4. Step 4: Simplify right side
    6,856.10x = 52,641,121.34
  5. Step 5: Solve for x
    x = 52,641,121.34/6,856.10
  6. Step 6: Final answer
    x = 7,678.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.