Home / 14,645.79-20,210.73-8,272.62

Finding the Fourth Proportional to 14,645.79, 20,210.73 and 8,272.62

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Solution

The fourth proportional to 14,645.79, 20,210.73 and 8,272.62 is: 11,415.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,645.79 : 20,210.73 = 8,272.62 : x
  2. Step 2: Convert to fraction form
    14,645.79/20,210.73 = 8,272.62/x
  3. Step 3: Cross multiply
    14,645.79x = 20,210.73 × 8,272.62
  4. Step 4: Simplify right side
    14,645.79x = 167,195,689.21
  5. Step 5: Solve for x
    x = 167,195,689.21/14,645.79
  6. Step 6: Final answer
    x = 11,415.96

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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.