Home / 14,502.05-20,014.23-8,129.72

Finding the Fourth Proportional to 14,502.05, 20,014.23 and 8,129.72

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Solution

The fourth proportional to 14,502.05, 20,014.23 and 8,129.72 is: 11,219.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,502.05 : 20,014.23 = 8,129.72 : x
  2. Step 2: Convert to fraction form
    14,502.05/20,014.23 = 8,129.72/x
  3. Step 3: Cross multiply
    14,502.05x = 20,014.23 × 8,129.72
  4. Step 4: Simplify right side
    14,502.05x = 162,710,085.92
  5. Step 5: Solve for x
    x = 162,710,085.92/14,502.05
  6. Step 6: Final answer
    x = 11,219.80

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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.