Home / 13,991.52-19,316.30-9,225.31

Finding the Fourth Proportional to 13,991.52, 19,316.30 and 9,225.31

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Solution

The fourth proportional to 13,991.52, 19,316.30 and 9,225.31 is: 12,736.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,991.52 : 19,316.30 = 9,225.31 : x
  2. Step 2: Convert to fraction form
    13,991.52/19,316.30 = 9,225.31/x
  3. Step 3: Cross multiply
    13,991.52x = 19,316.30 × 9,225.31
  4. Step 4: Simplify right side
    13,991.52x = 178,198,855.55
  5. Step 5: Solve for x
    x = 178,198,855.55/13,991.52
  6. Step 6: Final answer
    x = 12,736.20

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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.