Home / 13,156.52-19,638.80-11,495.75

Finding the Fourth Proportional to 13,156.52, 19,638.80 and 11,495.75

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Solution

The fourth proportional to 13,156.52, 19,638.80 and 11,495.75 is: 17,159.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,156.52 : 19,638.80 = 11,495.75 : x
  2. Step 2: Convert to fraction form
    13,156.52/19,638.80 = 11,495.75/x
  3. Step 3: Cross multiply
    13,156.52x = 19,638.80 × 11,495.75
  4. Step 4: Simplify right side
    13,156.52x = 225,762,735.10
  5. Step 5: Solve for x
    x = 225,762,735.10/13,156.52
  6. Step 6: Final answer
    x = 17,159.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.