Home / 13,910.13-19,187.35-9,130.39

Finding the Fourth Proportional to 13,910.13, 19,187.35 and 9,130.39

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Solution

The fourth proportional to 13,910.13, 19,187.35 and 9,130.39 is: 12,594.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,910.13 : 19,187.35 = 9,130.39 : x
  2. Step 2: Convert to fraction form
    13,910.13/19,187.35 = 9,130.39/x
  3. Step 3: Cross multiply
    13,910.13x = 19,187.35 × 9,130.39
  4. Step 4: Simplify right side
    13,910.13x = 175,187,917.77
  5. Step 5: Solve for x
    x = 175,187,917.77/13,910.13
  6. Step 6: Final answer
    x = 12,594.27

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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.