Home / 13,667.63-18,862.20-10,304.51

Finding the Fourth Proportional to 13,667.63, 18,862.20 and 10,304.51

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Solution

The fourth proportional to 13,667.63, 18,862.20 and 10,304.51 is: 14,220.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,667.63 : 18,862.20 = 10,304.51 : x
  2. Step 2: Convert to fraction form
    13,667.63/18,862.20 = 10,304.51/x
  3. Step 3: Cross multiply
    13,667.63x = 18,862.20 × 10,304.51
  4. Step 4: Simplify right side
    13,667.63x = 194,365,728.52
  5. Step 5: Solve for x
    x = 194,365,728.52/13,667.63
  6. Step 6: Final answer
    x = 14,220.88

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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.