Home / 13,884.86-19,141.17-9,899.05

Finding the Fourth Proportional to 13,884.86, 19,141.17 and 9,899.05

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Solution

The fourth proportional to 13,884.86, 19,141.17 and 9,899.05 is: 13,646.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,884.86 : 19,141.17 = 9,899.05 : x
  2. Step 2: Convert to fraction form
    13,884.86/19,141.17 = 9,899.05/x
  3. Step 3: Cross multiply
    13,884.86x = 19,141.17 × 9,899.05
  4. Step 4: Simplify right side
    13,884.86x = 189,479,459.94
  5. Step 5: Solve for x
    x = 189,479,459.94/13,884.86
  6. Step 6: Final answer
    x = 13,646.48

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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.