Home / 14,824.85-20,457.53-8,109.17

Finding the Fourth Proportional to 14,824.85, 20,457.53 and 8,109.17

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Solution

The fourth proportional to 14,824.85, 20,457.53 and 8,109.17 is: 11,190.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,824.85 : 20,457.53 = 8,109.17 : x
  2. Step 2: Convert to fraction form
    14,824.85/20,457.53 = 8,109.17/x
  3. Step 3: Cross multiply
    14,824.85x = 20,457.53 × 8,109.17
  4. Step 4: Simplify right side
    14,824.85x = 165,893,588.55
  5. Step 5: Solve for x
    x = 165,893,588.55/14,824.85
  6. Step 6: Final answer
    x = 11,190.24

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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.