Home / 18,897.06-28,346.40-6,418.20

Finding the Fourth Proportional to 18,897.06, 28,346.40 and 6,418.20

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Solution

The fourth proportional to 18,897.06, 28,346.40 and 6,418.20 is: 9,627.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,897.06 : 28,346.40 = 6,418.20 : x
  2. Step 2: Convert to fraction form
    18,897.06/28,346.40 = 6,418.20/x
  3. Step 3: Cross multiply
    18,897.06x = 28,346.40 × 6,418.20
  4. Step 4: Simplify right side
    18,897.06x = 181,932,864.48
  5. Step 5: Solve for x
    x = 181,932,864.48/18,897.06
  6. Step 6: Final answer
    x = 9,627.58

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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.