Home / 6,314.56-8,709.60-4,215.04

Finding the Fourth Proportional to 6,314.56, 8,709.60 and 4,215.04

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Solution

The fourth proportional to 6,314.56, 8,709.60 and 4,215.04 is: 5,813.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,314.56 : 8,709.60 = 4,215.04 : x
  2. Step 2: Convert to fraction form
    6,314.56/8,709.60 = 4,215.04/x
  3. Step 3: Cross multiply
    6,314.56x = 8,709.60 × 4,215.04
  4. Step 4: Simplify right side
    6,314.56x = 36,711,312.38
  5. Step 5: Solve for x
    x = 36,711,312.38/6,314.56
  6. Step 6: Final answer
    x = 5,813.76

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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.