Home / 13,151.07-19,731.20-8,214.93

Finding the Fourth Proportional to 13,151.07, 19,731.20 and 8,214.93

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Solution

The fourth proportional to 13,151.07, 19,731.20 and 8,214.93 is: 12,325.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,151.07 : 19,731.20 = 8,214.93 : x
  2. Step 2: Convert to fraction form
    13,151.07/19,731.20 = 8,214.93/x
  3. Step 3: Cross multiply
    13,151.07x = 19,731.20 × 8,214.93
  4. Step 4: Simplify right side
    13,151.07x = 162,090,348.70
  5. Step 5: Solve for x
    x = 162,090,348.70/13,151.07
  6. Step 6: Final answer
    x = 12,325.26

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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.