Home / 13,195.65-19,793.48-12,612.45

Finding the Fourth Proportional to 13,195.65, 19,793.48 and 12,612.45

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Solution

The fourth proportional to 13,195.65, 19,793.48 and 12,612.45 is: 18,918.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.65 : 19,793.48 = 12,612.45 : x
  2. Step 2: Convert to fraction form
    13,195.65/19,793.48 = 12,612.45/x
  3. Step 3: Cross multiply
    13,195.65x = 19,793.48 × 12,612.45
  4. Step 4: Simplify right side
    13,195.65x = 249,644,213.76
  5. Step 5: Solve for x
    x = 249,644,213.76/13,195.65
  6. Step 6: Final answer
    x = 18,918.68

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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.