Home / 13,784.24-18,983.40-13,741.04

Finding the Fourth Proportional to 13,784.24, 18,983.40 and 13,741.04

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Solution

The fourth proportional to 13,784.24, 18,983.40 and 13,741.04 is: 18,923.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784.24 : 18,983.40 = 13,741.04 : x
  2. Step 2: Convert to fraction form
    13,784.24/18,983.40 = 13,741.04/x
  3. Step 3: Cross multiply
    13,784.24x = 18,983.40 × 13,741.04
  4. Step 4: Simplify right side
    13,784.24x = 260,851,658.74
  5. Step 5: Solve for x
    x = 260,851,658.74/13,784.24
  6. Step 6: Final answer
    x = 18,923.91

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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.