Home / 15,003.96-20,693.66-13,997.94

Finding the Fourth Proportional to 15,003.96, 20,693.66 and 13,997.94

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Solution

The fourth proportional to 15,003.96, 20,693.66 and 13,997.94 is: 19,306.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,003.96 : 20,693.66 = 13,997.94 : x
  2. Step 2: Convert to fraction form
    15,003.96/20,693.66 = 13,997.94/x
  3. Step 3: Cross multiply
    15,003.96x = 20,693.66 × 13,997.94
  4. Step 4: Simplify right side
    15,003.96x = 289,668,541.07
  5. Step 5: Solve for x
    x = 289,668,541.07/15,003.96
  6. Step 6: Final answer
    x = 19,306.14

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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.