Home / 18,312.05-25,270.51-10,354.31

Finding the Fourth Proportional to 18,312.05, 25,270.51 and 10,354.31

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Solution

The fourth proportional to 18,312.05, 25,270.51 and 10,354.31 is: 14,288.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,312.05 : 25,270.51 = 10,354.31 : x
  2. Step 2: Convert to fraction form
    18,312.05/25,270.51 = 10,354.31/x
  3. Step 3: Cross multiply
    18,312.05x = 25,270.51 × 10,354.31
  4. Step 4: Simplify right side
    18,312.05x = 261,658,694.40
  5. Step 5: Solve for x
    x = 261,658,694.40/18,312.05
  6. Step 6: Final answer
    x = 14,288.88

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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.