Home / 12,573.22-18,857.40-11,948.80

Finding the Fourth Proportional to 12,573.22, 18,857.40 and 11,948.80

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Solution

The fourth proportional to 12,573.22, 18,857.40 and 11,948.80 is: 17,920.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,573.22 : 18,857.40 = 11,948.80 : x
  2. Step 2: Convert to fraction form
    12,573.22/18,857.40 = 11,948.80/x
  3. Step 3: Cross multiply
    12,573.22x = 18,857.40 × 11,948.80
  4. Step 4: Simplify right side
    12,573.22x = 225,323,301.12
  5. Step 5: Solve for x
    x = 225,323,301.12/12,573.22
  6. Step 6: Final answer
    x = 17,920.89

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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.