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Finding the Fourth Proportional to 12,474.70, 17,214.98 and 6,885.70

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Solution

The fourth proportional to 12,474.70, 17,214.98 and 6,885.70 is: 9,502.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,474.70 : 17,214.98 = 6,885.70 : x
  2. Step 2: Convert to fraction form
    12,474.70/17,214.98 = 6,885.70/x
  3. Step 3: Cross multiply
    12,474.70x = 17,214.98 × 6,885.70
  4. Step 4: Simplify right side
    12,474.70x = 118,537,187.79
  5. Step 5: Solve for x
    x = 118,537,187.79/12,474.70
  6. Step 6: Final answer
    x = 9,502.21

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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.