Home / 18,342.76-25,313.20-10,384.80

Finding the Fourth Proportional to 18,342.76, 25,313.20 and 10,384.80

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Solution

The fourth proportional to 18,342.76, 25,313.20 and 10,384.80 is: 14,331.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,342.76 : 25,313.20 = 10,384.80 : x
  2. Step 2: Convert to fraction form
    18,342.76/25,313.20 = 10,384.80/x
  3. Step 3: Cross multiply
    18,342.76x = 25,313.20 × 10,384.80
  4. Step 4: Simplify right side
    18,342.76x = 262,872,519.36
  5. Step 5: Solve for x
    x = 262,872,519.36/18,342.76
  6. Step 6: Final answer
    x = 14,331.13

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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.