Home / 13,986.12-19,300.28-8,013.63

Finding the Fourth Proportional to 13,986.12, 19,300.28 and 8,013.63

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Solution

The fourth proportional to 13,986.12, 19,300.28 and 8,013.63 is: 11,058.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,986.12 : 19,300.28 = 8,013.63 : x
  2. Step 2: Convert to fraction form
    13,986.12/19,300.28 = 8,013.63/x
  3. Step 3: Cross multiply
    13,986.12x = 19,300.28 × 8,013.63
  4. Step 4: Simplify right side
    13,986.12x = 154,665,335.12
  5. Step 5: Solve for x
    x = 154,665,335.12/13,986.12
  6. Step 6: Final answer
    x = 11,058.49

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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.