Home / 6,215.40-8,573.76-4,720.68

Finding the Fourth Proportional to 6,215.40, 8,573.76 and 4,720.68

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Solution

The fourth proportional to 6,215.40, 8,573.76 and 4,720.68 is: 6,511.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,215.40 : 8,573.76 = 4,720.68 : x
  2. Step 2: Convert to fraction form
    6,215.40/8,573.76 = 4,720.68/x
  3. Step 3: Cross multiply
    6,215.40x = 8,573.76 × 4,720.68
  4. Step 4: Simplify right side
    6,215.40x = 40,473,977.36
  5. Step 5: Solve for x
    x = 40,473,977.36/6,215.40
  6. Step 6: Final answer
    x = 6,511.89

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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.