Home / 12,881.92-19,294.33-9,898.40

Finding the Fourth Proportional to 12,881.92, 19,294.33 and 9,898.40

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Solution

The fourth proportional to 12,881.92, 19,294.33 and 9,898.40 is: 14,825.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,881.92 : 19,294.33 = 9,898.40 : x
  2. Step 2: Convert to fraction form
    12,881.92/19,294.33 = 9,898.40/x
  3. Step 3: Cross multiply
    12,881.92x = 19,294.33 × 9,898.40
  4. Step 4: Simplify right side
    12,881.92x = 190,982,996.07
  5. Step 5: Solve for x
    x = 190,982,996.07/12,881.92
  6. Step 6: Final answer
    x = 14,825.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.