Home / 18,270.24-25,212.78-10,312.80

Finding the Fourth Proportional to 18,270.24, 25,212.78 and 10,312.80

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Solution

The fourth proportional to 18,270.24, 25,212.78 and 10,312.80 is: 14,231.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,270.24 : 25,212.78 = 10,312.80 : x
  2. Step 2: Convert to fraction form
    18,270.24/25,212.78 = 10,312.80/x
  3. Step 3: Cross multiply
    18,270.24x = 25,212.78 × 10,312.80
  4. Step 4: Simplify right side
    18,270.24x = 260,014,357.58
  5. Step 5: Solve for x
    x = 260,014,357.58/18,270.24
  6. Step 6: Final answer
    x = 14,231.58

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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.