Home / 18,270.12-25,213.49-10,312.62

Finding the Fourth Proportional to 18,270.12, 25,213.49 and 10,312.62

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Solution

The fourth proportional to 18,270.12, 25,213.49 and 10,312.62 is: 14,231.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,270.12 : 25,213.49 = 10,312.62 : x
  2. Step 2: Convert to fraction form
    18,270.12/25,213.49 = 10,312.62/x
  3. Step 3: Cross multiply
    18,270.12x = 25,213.49 × 10,312.62
  4. Step 4: Simplify right side
    18,270.12x = 260,017,089.68
  5. Step 5: Solve for x
    x = 260,017,089.68/18,270.12
  6. Step 6: Final answer
    x = 14,231.82

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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.