Home / 13,269.82-19,908.81-7,430.56

Finding the Fourth Proportional to 13,269.82, 19,908.81 and 7,430.56

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Solution

The fourth proportional to 13,269.82, 19,908.81 and 7,430.56 is: 11,148.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269.82 : 19,908.81 = 7,430.56 : x
  2. Step 2: Convert to fraction form
    13,269.82/19,908.81 = 7,430.56/x
  3. Step 3: Cross multiply
    13,269.82x = 19,908.81 × 7,430.56
  4. Step 4: Simplify right side
    13,269.82x = 147,933,607.23
  5. Step 5: Solve for x
    x = 147,933,607.23/13,269.82
  6. Step 6: Final answer
    x = 11,148.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.