Home / 10,628.88-14,668.20-6,648.72

Finding the Fourth Proportional to 10,628.88, 14,668.20 and 6,648.72

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Solution

The fourth proportional to 10,628.88, 14,668.20 and 6,648.72 is: 9,175.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,628.88 : 14,668.20 = 6,648.72 : x
  2. Step 2: Convert to fraction form
    10,628.88/14,668.20 = 6,648.72/x
  3. Step 3: Cross multiply
    10,628.88x = 14,668.20 × 6,648.72
  4. Step 4: Simplify right side
    10,628.88x = 97,524,754.70
  5. Step 5: Solve for x
    x = 97,524,754.70/10,628.88
  6. Step 6: Final answer
    x = 9,175.45

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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.