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Finding the Fourth Proportional to 14,745, 20,348.04 and 8,457.24

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Solution

The fourth proportional to 14,745, 20,348.04 and 8,457.24 is: 11,670.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,745 : 20,348.04 = 8,457.24 : x
  2. Step 2: Convert to fraction form
    14,745/20,348.04 = 8,457.24/x
  3. Step 3: Cross multiply
    14,745x = 20,348.04 × 8,457.24
  4. Step 4: Simplify right side
    14,745x = 172,088,257.81
  5. Step 5: Solve for x
    x = 172,088,257.81/14,745
  6. Step 6: Final answer
    x = 11,670.96

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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.