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Finding the Fourth Proportional to 15,113.97, 20,858.81 and 8,826.93

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Solution

The fourth proportional to 15,113.97, 20,858.81 and 8,826.93 is: 12,182.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,113.97 : 20,858.81 = 8,826.93 : x
  2. Step 2: Convert to fraction form
    15,113.97/20,858.81 = 8,826.93/x
  3. Step 3: Cross multiply
    15,113.97x = 20,858.81 × 8,826.93
  4. Step 4: Simplify right side
    15,113.97x = 184,119,211.62
  5. Step 5: Solve for x
    x = 184,119,211.62/15,113.97
  6. Step 6: Final answer
    x = 12,182.05

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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.