Home / 12,145.52-18,218.27-4,752.14

Finding the Fourth Proportional to 12,145.52, 18,218.27 and 4,752.14

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Solution

The fourth proportional to 12,145.52, 18,218.27 and 4,752.14 is: 7,128.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145.52 : 18,218.27 = 4,752.14 : x
  2. Step 2: Convert to fraction form
    12,145.52/18,218.27 = 4,752.14/x
  3. Step 3: Cross multiply
    12,145.52x = 18,218.27 × 4,752.14
  4. Step 4: Simplify right side
    12,145.52x = 86,575,654.75
  5. Step 5: Solve for x
    x = 86,575,654.75/12,145.52
  6. Step 6: Final answer
    x = 7,128.20

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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.