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Finding the Fourth Proportional to 9,136.97, 13,707.47 and 2,898.89

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Solution

The fourth proportional to 9,136.97, 13,707.47 and 2,898.89 is: 4,348.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,136.97 : 13,707.47 = 2,898.89 : x
  2. Step 2: Convert to fraction form
    9,136.97/13,707.47 = 2,898.89/x
  3. Step 3: Cross multiply
    9,136.97x = 13,707.47 × 2,898.89
  4. Step 4: Simplify right side
    9,136.97x = 39,736,447.71
  5. Step 5: Solve for x
    x = 39,736,447.71/9,136.97
  6. Step 6: Final answer
    x = 4,348.97

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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.