Home / 13,876.70-19,149.80-7,503.30

Finding the Fourth Proportional to 13,876.70, 19,149.80 and 7,503.30

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Solution

The fourth proportional to 13,876.70, 19,149.80 and 7,503.30 is: 10,354.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,876.70 : 19,149.80 = 7,503.30 : x
  2. Step 2: Convert to fraction form
    13,876.70/19,149.80 = 7,503.30/x
  3. Step 3: Cross multiply
    13,876.70x = 19,149.80 × 7,503.30
  4. Step 4: Simplify right side
    13,876.70x = 143,686,656.82
  5. Step 5: Solve for x
    x = 143,686,656.82/13,876.70
  6. Step 6: Final answer
    x = 10,354.53

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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.