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Finding the Fourth Proportional to 10,865.74, 16,302.06 and 4,860.88

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Solution

The fourth proportional to 10,865.74, 16,302.06 and 4,860.88 is: 7,292.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,865.74 : 16,302.06 = 4,860.88 : x
  2. Step 2: Convert to fraction form
    10,865.74/16,302.06 = 4,860.88/x
  3. Step 3: Cross multiply
    10,865.74x = 16,302.06 × 4,860.88
  4. Step 4: Simplify right side
    10,865.74x = 79,242,357.41
  5. Step 5: Solve for x
    x = 79,242,357.41/10,865.74
  6. Step 6: Final answer
    x = 7,292.86

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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.