Home / 13,977.09-19,278.63-9,493.07

Finding the Fourth Proportional to 13,977.09, 19,278.63 and 9,493.07

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Solution

The fourth proportional to 13,977.09, 19,278.63 and 9,493.07 is: 13,093.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,977.09 : 19,278.63 = 9,493.07 : x
  2. Step 2: Convert to fraction form
    13,977.09/19,278.63 = 9,493.07/x
  3. Step 3: Cross multiply
    13,977.09x = 19,278.63 × 9,493.07
  4. Step 4: Simplify right side
    13,977.09x = 183,013,287.70
  5. Step 5: Solve for x
    x = 183,013,287.70/13,977.09
  6. Step 6: Final answer
    x = 13,093.80

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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.