Home / 12,962.20-19,421.70-12,184.60

Finding the Fourth Proportional to 12,962.20, 19,421.70 and 12,184.60

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Solution

The fourth proportional to 12,962.20, 19,421.70 and 12,184.60 is: 18,256.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,962.20 : 19,421.70 = 12,184.60 : x
  2. Step 2: Convert to fraction form
    12,962.20/19,421.70 = 12,184.60/x
  3. Step 3: Cross multiply
    12,962.20x = 19,421.70 × 12,184.60
  4. Step 4: Simplify right side
    12,962.20x = 236,645,645.82
  5. Step 5: Solve for x
    x = 236,645,645.82/12,962.20
  6. Step 6: Final answer
    x = 18,256.60

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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.