Home / 13,665.30-20,498.16-4,305.06

Finding the Fourth Proportional to 13,665.30, 20,498.16 and 4,305.06

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Solution

The fourth proportional to 13,665.30, 20,498.16 and 4,305.06 is: 6,457.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,665.30 : 20,498.16 = 4,305.06 : x
  2. Step 2: Convert to fraction form
    13,665.30/20,498.16 = 4,305.06/x
  3. Step 3: Cross multiply
    13,665.30x = 20,498.16 × 4,305.06
  4. Step 4: Simplify right side
    13,665.30x = 88,245,808.69
  5. Step 5: Solve for x
    x = 88,245,808.69/13,665.30
  6. Step 6: Final answer
    x = 6,457.66

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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.