Home / 14,808.08-20,428.30-8,516.81

Finding the Fourth Proportional to 14,808.08, 20,428.30 and 8,516.81

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Solution

The fourth proportional to 14,808.08, 20,428.30 and 8,516.81 is: 11,749.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,808.08 : 20,428.30 = 8,516.81 : x
  2. Step 2: Convert to fraction form
    14,808.08/20,428.30 = 8,516.81/x
  3. Step 3: Cross multiply
    14,808.08x = 20,428.30 × 8,516.81
  4. Step 4: Simplify right side
    14,808.08x = 173,984,011.44
  5. Step 5: Solve for x
    x = 173,984,011.44/14,808.08
  6. Step 6: Final answer
    x = 11,749.26

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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.