Home / 18,342.56-25,312.48-10,384.80

Finding the Fourth Proportional to 18,342.56, 25,312.48 and 10,384.80

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Solution

The fourth proportional to 18,342.56, 25,312.48 and 10,384.80 is: 14,330.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,342.56 : 25,312.48 = 10,384.80 : x
  2. Step 2: Convert to fraction form
    18,342.56/25,312.48 = 10,384.80/x
  3. Step 3: Cross multiply
    18,342.56x = 25,312.48 × 10,384.80
  4. Step 4: Simplify right side
    18,342.56x = 262,865,042.30
  5. Step 5: Solve for x
    x = 262,865,042.30/18,342.56
  6. Step 6: Final answer
    x = 14,330.88

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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.