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Finding the Fourth Proportional to 6,855.30, 9,459.59 and 5,063.72

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Solution

The fourth proportional to 6,855.30, 9,459.59 and 5,063.72 is: 6,987.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,855.30 : 9,459.59 = 5,063.72 : x
  2. Step 2: Convert to fraction form
    6,855.30/9,459.59 = 5,063.72/x
  3. Step 3: Cross multiply
    6,855.30x = 9,459.59 × 5,063.72
  4. Step 4: Simplify right side
    6,855.30x = 47,900,642.46
  5. Step 5: Solve for x
    x = 47,900,642.46/6,855.30
  6. Step 6: Final answer
    x = 6,987.39

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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.