Home / 15,291.10-22,940.11-5,430.38

Finding the Fourth Proportional to 15,291.10, 22,940.11 and 5,430.38

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Solution

The fourth proportional to 15,291.10, 22,940.11 and 5,430.38 is: 8,146.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,291.10 : 22,940.11 = 5,430.38 : x
  2. Step 2: Convert to fraction form
    15,291.10/22,940.11 = 5,430.38/x
  3. Step 3: Cross multiply
    15,291.10x = 22,940.11 × 5,430.38
  4. Step 4: Simplify right side
    15,291.10x = 124,573,514.54
  5. Step 5: Solve for x
    x = 124,573,514.54/15,291.10
  6. Step 6: Final answer
    x = 8,146.80

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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.