Home / 13,845.48-19,106.78-7,557.86

Finding the Fourth Proportional to 13,845.48, 19,106.78 and 7,557.86

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Solution

The fourth proportional to 13,845.48, 19,106.78 and 7,557.86 is: 10,429.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.48 : 19,106.78 = 7,557.86 : x
  2. Step 2: Convert to fraction form
    13,845.48/19,106.78 = 7,557.86/x
  3. Step 3: Cross multiply
    13,845.48x = 19,106.78 × 7,557.86
  4. Step 4: Simplify right side
    13,845.48x = 144,406,234.97
  5. Step 5: Solve for x
    x = 144,406,234.97/13,845.48
  6. Step 6: Final answer
    x = 10,429.85

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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.