Home / 13,328.74-18,395.92-10,136.92

Finding the Fourth Proportional to 13,328.74, 18,395.92 and 10,136.92

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Solution

The fourth proportional to 13,328.74, 18,395.92 and 10,136.92 is: 13,990.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328.74 : 18,395.92 = 10,136.92 : x
  2. Step 2: Convert to fraction form
    13,328.74/18,395.92 = 10,136.92/x
  3. Step 3: Cross multiply
    13,328.74x = 18,395.92 × 10,136.92
  4. Step 4: Simplify right side
    13,328.74x = 186,477,855.97
  5. Step 5: Solve for x
    x = 186,477,855.97/13,328.74
  6. Step 6: Final answer
    x = 13,990.66

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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.