Home / 12,421.89-18,627.36-6,577.14

Finding the Fourth Proportional to 12,421.89, 18,627.36 and 6,577.14

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Solution

The fourth proportional to 12,421.89, 18,627.36 and 6,577.14 is: 9,862.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,421.89 : 18,627.36 = 6,577.14 : x
  2. Step 2: Convert to fraction form
    12,421.89/18,627.36 = 6,577.14/x
  3. Step 3: Cross multiply
    12,421.89x = 18,627.36 × 6,577.14
  4. Step 4: Simplify right side
    12,421.89x = 122,514,754.55
  5. Step 5: Solve for x
    x = 122,514,754.55/12,421.89
  6. Step 6: Final answer
    x = 9,862.81

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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.