Home / 15,273.55-21,089.53-13,775.46

Finding the Fourth Proportional to 15,273.55, 21,089.53 and 13,775.46

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Solution

The fourth proportional to 15,273.55, 21,089.53 and 13,775.46 is: 19,020.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,273.55 : 21,089.53 = 13,775.46 : x
  2. Step 2: Convert to fraction form
    15,273.55/21,089.53 = 13,775.46/x
  3. Step 3: Cross multiply
    15,273.55x = 21,089.53 × 13,775.46
  4. Step 4: Simplify right side
    15,273.55x = 290,517,976.93
  5. Step 5: Solve for x
    x = 290,517,976.93/15,273.55
  6. Step 6: Final answer
    x = 19,020.99

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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.