Home / 19,132.02-28,668.80-12,868.86

Finding the Fourth Proportional to 19,132.02, 28,668.80 and 12,868.86

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Solution

The fourth proportional to 19,132.02, 28,668.80 and 12,868.86 is: 19,283.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,132.02 : 28,668.80 = 12,868.86 : x
  2. Step 2: Convert to fraction form
    19,132.02/28,668.80 = 12,868.86/x
  3. Step 3: Cross multiply
    19,132.02x = 28,668.80 × 12,868.86
  4. Step 4: Simplify right side
    19,132.02x = 368,934,709.22
  5. Step 5: Solve for x
    x = 368,934,709.22/19,132.02
  6. Step 6: Final answer
    x = 19,283.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.