Home / 18,962.88-28,444.68-5,112.24

Finding the Fourth Proportional to 18,962.88, 28,444.68 and 5,112.24

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Solution

The fourth proportional to 18,962.88, 28,444.68 and 5,112.24 is: 7,668.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,962.88 : 28,444.68 = 5,112.24 : x
  2. Step 2: Convert to fraction form
    18,962.88/28,444.68 = 5,112.24/x
  3. Step 3: Cross multiply
    18,962.88x = 28,444.68 × 5,112.24
  4. Step 4: Simplify right side
    18,962.88x = 145,416,030.88
  5. Step 5: Solve for x
    x = 145,416,030.88/18,962.88
  6. Step 6: Final answer
    x = 7,668.46

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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.