Home / 14,649.40-20,215.74-8,276.29

Finding the Fourth Proportional to 14,649.40, 20,215.74 and 8,276.29

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Solution

The fourth proportional to 14,649.40, 20,215.74 and 8,276.29 is: 11,421.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,649.40 : 20,215.74 = 8,276.29 : x
  2. Step 2: Convert to fraction form
    14,649.40/20,215.74 = 8,276.29/x
  3. Step 3: Cross multiply
    14,649.40x = 20,215.74 × 8,276.29
  4. Step 4: Simplify right side
    14,649.40x = 167,311,326.80
  5. Step 5: Solve for x
    x = 167,311,326.80/14,649.40
  6. Step 6: Final answer
    x = 11,421.04

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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.