Home / 13,861.05-19,130.49-10,899.39

Finding the Fourth Proportional to 13,861.05, 19,130.49 and 10,899.39

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Solution

The fourth proportional to 13,861.05, 19,130.49 and 10,899.39 is: 15,042.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,861.05 : 19,130.49 = 10,899.39 : x
  2. Step 2: Convert to fraction form
    13,861.05/19,130.49 = 10,899.39/x
  3. Step 3: Cross multiply
    13,861.05x = 19,130.49 × 10,899.39
  4. Step 4: Simplify right side
    13,861.05x = 208,510,671.40
  5. Step 5: Solve for x
    x = 208,510,671.40/13,861.05
  6. Step 6: Final answer
    x = 15,042.92

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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.