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Finding the Fourth Proportional to 12,487.84, 17,234.40 and 6,898.84

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Solution

The fourth proportional to 12,487.84, 17,234.40 and 6,898.84 is: 9,521.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,487.84 : 17,234.40 = 6,898.84 : x
  2. Step 2: Convert to fraction form
    12,487.84/17,234.40 = 6,898.84/x
  3. Step 3: Cross multiply
    12,487.84x = 17,234.40 × 6,898.84
  4. Step 4: Simplify right side
    12,487.84x = 118,897,368.10
  5. Step 5: Solve for x
    x = 118,897,368.10/12,487.84
  6. Step 6: Final answer
    x = 9,521.05

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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.