Home / 19,793.18-27,307.80-11,289.18

Finding the Fourth Proportional to 19,793.18, 27,307.80 and 11,289.18

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Solution

The fourth proportional to 19,793.18, 27,307.80 and 11,289.18 is: 15,575.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,793.18 : 27,307.80 = 11,289.18 : x
  2. Step 2: Convert to fraction form
    19,793.18/27,307.80 = 11,289.18/x
  3. Step 3: Cross multiply
    19,793.18x = 27,307.80 × 11,289.18
  4. Step 4: Simplify right side
    19,793.18x = 308,282,772.01
  5. Step 5: Solve for x
    x = 308,282,772.01/19,793.18
  6. Step 6: Final answer
    x = 15,575.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.