Home / 18,897.16-28,345.74-6,418.48

Finding the Fourth Proportional to 18,897.16, 28,345.74 and 6,418.48

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Solution

The fourth proportional to 18,897.16, 28,345.74 and 6,418.48 is: 9,627.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,897.16 : 28,345.74 = 6,418.48 : x
  2. Step 2: Convert to fraction form
    18,897.16/28,345.74 = 6,418.48/x
  3. Step 3: Cross multiply
    18,897.16x = 28,345.74 × 6,418.48
  4. Step 4: Simplify right side
    18,897.16x = 181,936,565.28
  5. Step 5: Solve for x
    x = 181,936,565.28/18,897.16
  6. Step 6: Final answer
    x = 9,627.72

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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.