Home / 14,881.48-20,535.60-8,911.78

Finding the Fourth Proportional to 14,881.48, 20,535.60 and 8,911.78

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Solution

The fourth proportional to 14,881.48, 20,535.60 and 8,911.78 is: 12,297.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,881.48 : 20,535.60 = 8,911.78 : x
  2. Step 2: Convert to fraction form
    14,881.48/20,535.60 = 8,911.78/x
  3. Step 3: Cross multiply
    14,881.48x = 20,535.60 × 8,911.78
  4. Step 4: Simplify right side
    14,881.48x = 183,008,749.37
  5. Step 5: Solve for x
    x = 183,008,749.37/14,881.48
  6. Step 6: Final answer
    x = 12,297.75

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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.