Home / 18,213.28-25,136.74-10,257.04

Finding the Fourth Proportional to 18,213.28, 25,136.74 and 10,257.04

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Solution

The fourth proportional to 18,213.28, 25,136.74 and 10,257.04 is: 14,156.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,213.28 : 25,136.74 = 10,257.04 : x
  2. Step 2: Convert to fraction form
    18,213.28/25,136.74 = 10,257.04/x
  3. Step 3: Cross multiply
    18,213.28x = 25,136.74 × 10,257.04
  4. Step 4: Simplify right side
    18,213.28x = 257,828,547.65
  5. Step 5: Solve for x
    x = 257,828,547.65/18,213.28
  6. Step 6: Final answer
    x = 14,156.07

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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.