Home / 18,136.86-25,030.67-12,180.93

Finding the Fourth Proportional to 18,136.86, 25,030.67 and 12,180.93

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Solution

The fourth proportional to 18,136.86, 25,030.67 and 12,180.93 is: 16,810.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,136.86 : 25,030.67 = 12,180.93 : x
  2. Step 2: Convert to fraction form
    18,136.86/25,030.67 = 12,180.93/x
  3. Step 3: Cross multiply
    18,136.86x = 25,030.67 × 12,180.93
  4. Step 4: Simplify right side
    18,136.86x = 304,896,778.22
  5. Step 5: Solve for x
    x = 304,896,778.22/18,136.86
  6. Step 6: Final answer
    x = 16,810.89

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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.