Home / 18,897.48-28,344.60-5,752.80

Finding the Fourth Proportional to 18,897.48, 28,344.60 and 5,752.80

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Solution

The fourth proportional to 18,897.48, 28,344.60 and 5,752.80 is: 8,628.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,897.48 : 28,344.60 = 5,752.80 : x
  2. Step 2: Convert to fraction form
    18,897.48/28,344.60 = 5,752.80/x
  3. Step 3: Cross multiply
    18,897.48x = 28,344.60 × 5,752.80
  4. Step 4: Simplify right side
    18,897.48x = 163,060,814.88
  5. Step 5: Solve for x
    x = 163,060,814.88/18,897.48
  6. Step 6: Final answer
    x = 8,628.71

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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.