Home / 18,215.10-25,136.93-10,257.46

Finding the Fourth Proportional to 18,215.10, 25,136.93 and 10,257.46

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Solution

The fourth proportional to 18,215.10, 25,136.93 and 10,257.46 is: 14,155.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215.10 : 25,136.93 = 10,257.46 : x
  2. Step 2: Convert to fraction form
    18,215.10/25,136.93 = 10,257.46/x
  3. Step 3: Cross multiply
    18,215.10x = 25,136.93 × 10,257.46
  4. Step 4: Simplify right side
    18,215.10x = 257,841,002.71
  5. Step 5: Solve for x
    x = 257,841,002.71/18,215.10
  6. Step 6: Final answer
    x = 14,155.35

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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.