Home / 12,962.50-17,889.16-7,297.80

Finding the Fourth Proportional to 12,962.50, 17,889.16 and 7,297.80

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Solution

The fourth proportional to 12,962.50, 17,889.16 and 7,297.80 is: 10,071.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,962.50 : 17,889.16 = 7,297.80 : x
  2. Step 2: Convert to fraction form
    12,962.50/17,889.16 = 7,297.80/x
  3. Step 3: Cross multiply
    12,962.50x = 17,889.16 × 7,297.80
  4. Step 4: Simplify right side
    12,962.50x = 130,551,511.85
  5. Step 5: Solve for x
    x = 130,551,511.85/12,962.50
  6. Step 6: Final answer
    x = 10,071.48

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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.