Home / 13,089.60-18,069.48-7,786.26

Finding the Fourth Proportional to 13,089.60, 18,069.48 and 7,786.26

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Solution

The fourth proportional to 13,089.60, 18,069.48 and 7,786.26 is: 10,748.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,089.60 : 18,069.48 = 7,786.26 : x
  2. Step 2: Convert to fraction form
    13,089.60/18,069.48 = 7,786.26/x
  3. Step 3: Cross multiply
    13,089.60x = 18,069.48 × 7,786.26
  4. Step 4: Simplify right side
    13,089.60x = 140,693,669.34
  5. Step 5: Solve for x
    x = 140,693,669.34/13,089.60
  6. Step 6: Final answer
    x = 10,748.51

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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.