Home / 13,807.67-19,056.77-8,431.29

Finding the Fourth Proportional to 13,807.67, 19,056.77 and 8,431.29

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Solution

The fourth proportional to 13,807.67, 19,056.77 and 8,431.29 is: 11,636.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,807.67 : 19,056.77 = 8,431.29 : x
  2. Step 2: Convert to fraction form
    13,807.67/19,056.77 = 8,431.29/x
  3. Step 3: Cross multiply
    13,807.67x = 19,056.77 × 8,431.29
  4. Step 4: Simplify right side
    13,807.67x = 160,673,143.79
  5. Step 5: Solve for x
    x = 160,673,143.79/13,807.67
  6. Step 6: Final answer
    x = 11,636.52

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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.