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Finding the Fourth Proportional to 17,897.80, 26,854.80 and 8,534.20

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Solution

The fourth proportional to 17,897.80, 26,854.80 and 8,534.20 is: 12,805.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,897.80 : 26,854.80 = 8,534.20 : x
  2. Step 2: Convert to fraction form
    17,897.80/26,854.80 = 8,534.20/x
  3. Step 3: Cross multiply
    17,897.80x = 26,854.80 × 8,534.20
  4. Step 4: Simplify right side
    17,897.80x = 229,184,234.16
  5. Step 5: Solve for x
    x = 229,184,234.16/17,897.80
  6. Step 6: Final answer
    x = 12,805.16

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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.