Home / 13,165.60-19,646.50-11,763.70

Finding the Fourth Proportional to 13,165.60, 19,646.50 and 11,763.70

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Solution

The fourth proportional to 13,165.60, 19,646.50 and 11,763.70 is: 17,554.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,165.60 : 19,646.50 = 11,763.70 : x
  2. Step 2: Convert to fraction form
    13,165.60/19,646.50 = 11,763.70/x
  3. Step 3: Cross multiply
    13,165.60x = 19,646.50 × 11,763.70
  4. Step 4: Simplify right side
    13,165.60x = 231,115,532.05
  5. Step 5: Solve for x
    x = 231,115,532.05/13,165.60
  6. Step 6: Final answer
    x = 17,554.50

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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.