Home / 12,897.87-19,346.80-8,514.30

Finding the Fourth Proportional to 12,897.87, 19,346.80 and 8,514.30

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Solution

The fourth proportional to 12,897.87, 19,346.80 and 8,514.30 is: 12,771.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,897.87 : 19,346.80 = 8,514.30 : x
  2. Step 2: Convert to fraction form
    12,897.87/19,346.80 = 8,514.30/x
  3. Step 3: Cross multiply
    12,897.87x = 19,346.80 × 8,514.30
  4. Step 4: Simplify right side
    12,897.87x = 164,724,459.24
  5. Step 5: Solve for x
    x = 164,724,459.24/12,897.87
  6. Step 6: Final answer
    x = 12,771.45

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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.