Home / 12,477.74-17,219.28-7,173.60

Finding the Fourth Proportional to 12,477.74, 17,219.28 and 7,173.60

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Solution

The fourth proportional to 12,477.74, 17,219.28 and 7,173.60 is: 9,899.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,477.74 : 17,219.28 = 7,173.60 : x
  2. Step 2: Convert to fraction form
    12,477.74/17,219.28 = 7,173.60/x
  3. Step 3: Cross multiply
    12,477.74x = 17,219.28 × 7,173.60
  4. Step 4: Simplify right side
    12,477.74x = 123,524,227.01
  5. Step 5: Solve for x
    x = 123,524,227.01/12,477.74
  6. Step 6: Final answer
    x = 9,899.57

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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.