Home / 13,675.72-18,863.12-8,373.16

Finding the Fourth Proportional to 13,675.72, 18,863.12 and 8,373.16

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Solution

The fourth proportional to 13,675.72, 18,863.12 and 8,373.16 is: 11,549.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,675.72 : 18,863.12 = 8,373.16 : x
  2. Step 2: Convert to fraction form
    13,675.72/18,863.12 = 8,373.16/x
  3. Step 3: Cross multiply
    13,675.72x = 18,863.12 × 8,373.16
  4. Step 4: Simplify right side
    13,675.72x = 157,943,895.63
  5. Step 5: Solve for x
    x = 157,943,895.63/13,675.72
  6. Step 6: Final answer
    x = 11,549.22

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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.