Home / 18,631.51-25,709.91-10,973.56

Finding the Fourth Proportional to 18,631.51, 25,709.91 and 10,973.56

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Solution

The fourth proportional to 18,631.51, 25,709.91 and 10,973.56 is: 15,142.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.51 : 25,709.91 = 10,973.56 : x
  2. Step 2: Convert to fraction form
    18,631.51/25,709.91 = 10,973.56/x
  3. Step 3: Cross multiply
    18,631.51x = 25,709.91 × 10,973.56
  4. Step 4: Simplify right side
    18,631.51x = 282,129,239.98
  5. Step 5: Solve for x
    x = 282,129,239.98/18,631.51
  6. Step 6: Final answer
    x = 15,142.59

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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.