Home / 12,599.65-17,388.23-7,222.98

Finding the Fourth Proportional to 12,599.65, 17,388.23 and 7,222.98

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Solution

The fourth proportional to 12,599.65, 17,388.23 and 7,222.98 is: 9,968.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,599.65 : 17,388.23 = 7,222.98 : x
  2. Step 2: Convert to fraction form
    12,599.65/17,388.23 = 7,222.98/x
  3. Step 3: Cross multiply
    12,599.65x = 17,388.23 × 7,222.98
  4. Step 4: Simplify right side
    12,599.65x = 125,594,837.53
  5. Step 5: Solve for x
    x = 125,594,837.53/12,599.65
  6. Step 6: Final answer
    x = 9,968.12

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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.