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Finding the Fourth Proportional to 8,703.32, 13,054.98 and 3,156.66

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Solution

The fourth proportional to 8,703.32, 13,054.98 and 3,156.66 is: 4,734.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,703.32 : 13,054.98 = 3,156.66 : x
  2. Step 2: Convert to fraction form
    8,703.32/13,054.98 = 3,156.66/x
  3. Step 3: Cross multiply
    8,703.32x = 13,054.98 × 3,156.66
  4. Step 4: Simplify right side
    8,703.32x = 41,210,133.17
  5. Step 5: Solve for x
    x = 41,210,133.17/8,703.32
  6. Step 6: Final answer
    x = 4,734.99

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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.