Home / 13,586.29-18,749.55-7,618.03

Finding the Fourth Proportional to 13,586.29, 18,749.55 and 7,618.03

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Solution

The fourth proportional to 13,586.29, 18,749.55 and 7,618.03 is: 10,513.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586.29 : 18,749.55 = 7,618.03 : x
  2. Step 2: Convert to fraction form
    13,586.29/18,749.55 = 7,618.03/x
  3. Step 3: Cross multiply
    13,586.29x = 18,749.55 × 7,618.03
  4. Step 4: Simplify right side
    13,586.29x = 142,834,634.39
  5. Step 5: Solve for x
    x = 142,834,634.39/13,586.29
  6. Step 6: Final answer
    x = 10,513.14

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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.