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Finding the Fourth Proportional to 19,457.88, 26,842.08 and 12,754.80

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Solution

The fourth proportional to 19,457.88, 26,842.08 and 12,754.80 is: 17,595.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,457.88 : 26,842.08 = 12,754.80 : x
  2. Step 2: Convert to fraction form
    19,457.88/26,842.08 = 12,754.80/x
  3. Step 3: Cross multiply
    19,457.88x = 26,842.08 × 12,754.80
  4. Step 4: Simplify right side
    19,457.88x = 342,365,361.98
  5. Step 5: Solve for x
    x = 342,365,361.98/19,457.88
  6. Step 6: Final answer
    x = 17,595.20

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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.