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Finding the Fourth Proportional to 7,347.87, 10,136.61 and 7,065.09

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Solution

The fourth proportional to 7,347.87, 10,136.61 and 7,065.09 is: 9,746.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,347.87 : 10,136.61 = 7,065.09 : x
  2. Step 2: Convert to fraction form
    7,347.87/10,136.61 = 7,065.09/x
  3. Step 3: Cross multiply
    7,347.87x = 10,136.61 × 7,065.09
  4. Step 4: Simplify right side
    7,347.87x = 71,616,061.94
  5. Step 5: Solve for x
    x = 71,616,061.94/7,347.87
  6. Step 6: Final answer
    x = 9,746.51

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Double scale
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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.