Home / 18,849.48-28,278.87-13,313.63

Finding the Fourth Proportional to 18,849.48, 28,278.87 and 13,313.63

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Solution

The fourth proportional to 18,849.48, 28,278.87 and 13,313.63 is: 19,973.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,849.48 : 28,278.87 = 13,313.63 : x
  2. Step 2: Convert to fraction form
    18,849.48/28,278.87 = 13,313.63/x
  3. Step 3: Cross multiply
    18,849.48x = 28,278.87 × 13,313.63
  4. Step 4: Simplify right side
    18,849.48x = 376,494,507.66
  5. Step 5: Solve for x
    x = 376,494,507.66/18,849.48
  6. Step 6: Final answer
    x = 19,973.74

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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.