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Finding the Fourth Proportional to 14,482.77, 19,987.91 and 8,820.84

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Solution

The fourth proportional to 14,482.77, 19,987.91 and 8,820.84 is: 12,173.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,482.77 : 19,987.91 = 8,820.84 : x
  2. Step 2: Convert to fraction form
    14,482.77/19,987.91 = 8,820.84/x
  3. Step 3: Cross multiply
    14,482.77x = 19,987.91 × 8,820.84
  4. Step 4: Simplify right side
    14,482.77x = 176,310,111.94
  5. Step 5: Solve for x
    x = 176,310,111.94/14,482.77
  6. Step 6: Final answer
    x = 12,173.78

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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.