Home / 19,145.49-28,714.99-5,291.25

Finding the Fourth Proportional to 19,145.49, 28,714.99 and 5,291.25

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Solution

The fourth proportional to 19,145.49, 28,714.99 and 5,291.25 is: 7,935.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,145.49 : 28,714.99 = 5,291.25 : x
  2. Step 2: Convert to fraction form
    19,145.49/28,714.99 = 5,291.25/x
  3. Step 3: Cross multiply
    19,145.49x = 28,714.99 × 5,291.25
  4. Step 4: Simplify right side
    19,145.49x = 151,938,190.84
  5. Step 5: Solve for x
    x = 151,938,190.84/19,145.49
  6. Step 6: Final answer
    x = 7,935.98

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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.