Home / 13,586.18-18,749.40-7,924.54

Finding the Fourth Proportional to 13,586.18, 18,749.40 and 7,924.54

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Solution

The fourth proportional to 13,586.18, 18,749.40 and 7,924.54 is: 10,936.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586.18 : 18,749.40 = 7,924.54 : x
  2. Step 2: Convert to fraction form
    13,586.18/18,749.40 = 7,924.54/x
  3. Step 3: Cross multiply
    13,586.18x = 18,749.40 × 7,924.54
  4. Step 4: Simplify right side
    13,586.18x = 148,580,370.28
  5. Step 5: Solve for x
    x = 148,580,370.28/13,586.18
  6. Step 6: Final answer
    x = 10,936.14

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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.