Home / 13,470.14-18,600.54-8,442.99

Finding the Fourth Proportional to 13,470.14, 18,600.54 and 8,442.99

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Solution

The fourth proportional to 13,470.14, 18,600.54 and 8,442.99 is: 11,658.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,470.14 : 18,600.54 = 8,442.99 : x
  2. Step 2: Convert to fraction form
    13,470.14/18,600.54 = 8,442.99/x
  3. Step 3: Cross multiply
    13,470.14x = 18,600.54 × 8,442.99
  4. Step 4: Simplify right side
    13,470.14x = 157,044,173.21
  5. Step 5: Solve for x
    x = 157,044,173.21/13,470.14
  6. Step 6: Final answer
    x = 11,658.69

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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.