Home / 13,889.52-19,171.08-9,107.28

Finding the Fourth Proportional to 13,889.52, 19,171.08 and 9,107.28

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Solution

The fourth proportional to 13,889.52, 19,171.08 and 9,107.28 is: 12,570.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889.52 : 19,171.08 = 9,107.28 : x
  2. Step 2: Convert to fraction form
    13,889.52/19,171.08 = 9,107.28/x
  3. Step 3: Cross multiply
    13,889.52x = 19,171.08 × 9,107.28
  4. Step 4: Simplify right side
    13,889.52x = 174,596,393.46
  5. Step 5: Solve for x
    x = 174,596,393.46/13,889.52
  6. Step 6: Final answer
    x = 12,570.37

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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.