Home / 19,715.58-29,579.38-11,826.86

Finding the Fourth Proportional to 19,715.58, 29,579.38 and 11,826.86

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Solution

The fourth proportional to 19,715.58, 29,579.38 and 11,826.86 is: 17,743.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,715.58 : 29,579.38 = 11,826.86 : x
  2. Step 2: Convert to fraction form
    19,715.58/29,579.38 = 11,826.86/x
  3. Step 3: Cross multiply
    19,715.58x = 29,579.38 × 11,826.86
  4. Step 4: Simplify right side
    19,715.58x = 349,831,186.15
  5. Step 5: Solve for x
    x = 349,831,186.15/19,715.58
  6. Step 6: Final answer
    x = 17,743.90

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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.