Home / 13,942.36-19,235.77-8,909.53

Finding the Fourth Proportional to 13,942.36, 19,235.77 and 8,909.53

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Solution

The fourth proportional to 13,942.36, 19,235.77 and 8,909.53 is: 12,292.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,942.36 : 19,235.77 = 8,909.53 : x
  2. Step 2: Convert to fraction form
    13,942.36/19,235.77 = 8,909.53/x
  3. Step 3: Cross multiply
    13,942.36x = 19,235.77 × 8,909.53
  4. Step 4: Simplify right side
    13,942.36x = 171,381,669.89
  5. Step 5: Solve for x
    x = 171,381,669.89/13,942.36
  6. Step 6: Final answer
    x = 12,292.16

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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.