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Finding the Fourth Proportional to 8,703.99, 13,055.99 and 3,156.08

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Solution

The fourth proportional to 8,703.99, 13,055.99 and 3,156.08 is: 4,734.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,703.99 : 13,055.99 = 3,156.08 : x
  2. Step 2: Convert to fraction form
    8,703.99/13,055.99 = 3,156.08/x
  3. Step 3: Cross multiply
    8,703.99x = 13,055.99 × 3,156.08
  4. Step 4: Simplify right side
    8,703.99x = 41,205,667.86
  5. Step 5: Solve for x
    x = 41,205,667.86/8,703.99
  6. Step 6: Final answer
    x = 4,734.11

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Similar ratio
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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.