Home / 15,256.70-21,039.45-11,898.29

Finding the Fourth Proportional to 15,256.70, 21,039.45 and 11,898.29

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Solution

The fourth proportional to 15,256.70, 21,039.45 and 11,898.29 is: 16,408.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,256.70 : 21,039.45 = 11,898.29 : x
  2. Step 2: Convert to fraction form
    15,256.70/21,039.45 = 11,898.29/x
  3. Step 3: Cross multiply
    15,256.70x = 21,039.45 × 11,898.29
  4. Step 4: Simplify right side
    15,256.70x = 250,333,477.54
  5. Step 5: Solve for x
    x = 250,333,477.54/15,256.70
  6. Step 6: Final answer
    x = 16,408.10

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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.