Home / 13,837.50-19,098.18-9,131.40

Finding the Fourth Proportional to 13,837.50, 19,098.18 and 9,131.40

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Solution

The fourth proportional to 13,837.50, 19,098.18 and 9,131.40 is: 12,602.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,837.50 : 19,098.18 = 9,131.40 : x
  2. Step 2: Convert to fraction form
    13,837.50/19,098.18 = 9,131.40/x
  3. Step 3: Cross multiply
    13,837.50x = 19,098.18 × 9,131.40
  4. Step 4: Simplify right side
    13,837.50x = 174,393,120.85
  5. Step 5: Solve for x
    x = 174,393,120.85/13,837.50
  6. Step 6: Final answer
    x = 12,602.94

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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.