Home / 8,352.28-12,528.82-6,888.72

Finding the Fourth Proportional to 8,352.28, 12,528.82 and 6,888.72

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Solution

The fourth proportional to 8,352.28, 12,528.82 and 6,888.72 is: 10,333.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,352.28 : 12,528.82 = 6,888.72 : x
  2. Step 2: Convert to fraction form
    8,352.28/12,528.82 = 6,888.72/x
  3. Step 3: Cross multiply
    8,352.28x = 12,528.82 × 6,888.72
  4. Step 4: Simplify right side
    8,352.28x = 86,307,532.91
  5. Step 5: Solve for x
    x = 86,307,532.91/8,352.28
  6. Step 6: Final answer
    x = 10,333.41

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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.