Home / 14,111.28-21,167.20-4,749.58

Finding the Fourth Proportional to 14,111.28, 21,167.20 and 4,749.58

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Solution

The fourth proportional to 14,111.28, 21,167.20 and 4,749.58 is: 7,124.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,111.28 : 21,167.20 = 4,749.58 : x
  2. Step 2: Convert to fraction form
    14,111.28/21,167.20 = 4,749.58/x
  3. Step 3: Cross multiply
    14,111.28x = 21,167.20 × 4,749.58
  4. Step 4: Simplify right side
    14,111.28x = 100,535,309.78
  5. Step 5: Solve for x
    x = 100,535,309.78/14,111.28
  6. Step 6: Final answer
    x = 7,124.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.