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Finding the Fourth Proportional to 15,050.13, 20,768.91 and 8,335.74

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Solution

The fourth proportional to 15,050.13, 20,768.91 and 8,335.74 is: 11,503.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,050.13 : 20,768.91 = 8,335.74 : x
  2. Step 2: Convert to fraction form
    15,050.13/20,768.91 = 8,335.74/x
  3. Step 3: Cross multiply
    15,050.13x = 20,768.91 × 8,335.74
  4. Step 4: Simplify right side
    15,050.13x = 173,124,105.23
  5. Step 5: Solve for x
    x = 173,124,105.23/15,050.13
  6. Step 6: Final answer
    x = 11,503.16

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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.