Home / 15,295.60-21,136.94-13,026.58

Finding the Fourth Proportional to 15,295.60, 21,136.94 and 13,026.58

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Solution

The fourth proportional to 15,295.60, 21,136.94 and 13,026.58 is: 18,001.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,295.60 : 21,136.94 = 13,026.58 : x
  2. Step 2: Convert to fraction form
    15,295.60/21,136.94 = 13,026.58/x
  3. Step 3: Cross multiply
    15,295.60x = 21,136.94 × 13,026.58
  4. Step 4: Simplify right side
    15,295.60x = 275,342,039.87
  5. Step 5: Solve for x
    x = 275,342,039.87/15,295.60
  6. Step 6: Final answer
    x = 18,001.39

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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.