Home / 13,365.60-18,446.48-7,699.25

Finding the Fourth Proportional to 13,365.60, 18,446.48 and 7,699.25

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Solution

The fourth proportional to 13,365.60, 18,446.48 and 7,699.25 is: 10,626.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,365.60 : 18,446.48 = 7,699.25 : x
  2. Step 2: Convert to fraction form
    13,365.60/18,446.48 = 7,699.25/x
  3. Step 3: Cross multiply
    13,365.60x = 18,446.48 × 7,699.25
  4. Step 4: Simplify right side
    13,365.60x = 142,024,061.14
  5. Step 5: Solve for x
    x = 142,024,061.14/13,365.60
  6. Step 6: Final answer
    x = 10,626.09

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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.