Home / 18,215.04-25,136.55-10,257.12

Finding the Fourth Proportional to 18,215.04, 25,136.55 and 10,257.12

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Solution

The fourth proportional to 18,215.04, 25,136.55 and 10,257.12 is: 14,154.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215.04 : 25,136.55 = 10,257.12 : x
  2. Step 2: Convert to fraction form
    18,215.04/25,136.55 = 10,257.12/x
  3. Step 3: Cross multiply
    18,215.04x = 25,136.55 × 10,257.12
  4. Step 4: Simplify right side
    18,215.04x = 257,828,609.74
  5. Step 5: Solve for x
    x = 257,828,609.74/18,215.04
  6. Step 6: Final answer
    x = 14,154.71

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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.