Home / 13,548.75-18,686.79-10,354.11

Finding the Fourth Proportional to 13,548.75, 18,686.79 and 10,354.11

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Solution

The fourth proportional to 13,548.75, 18,686.79 and 10,354.11 is: 14,280.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,548.75 : 18,686.79 = 10,354.11 : x
  2. Step 2: Convert to fraction form
    13,548.75/18,686.79 = 10,354.11/x
  3. Step 3: Cross multiply
    13,548.75x = 18,686.79 × 10,354.11
  4. Step 4: Simplify right side
    13,548.75x = 193,485,079.21
  5. Step 5: Solve for x
    x = 193,485,079.21/13,548.75
  6. Step 6: Final answer
    x = 14,280.66

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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.