Home / 19,518.76-29,268.30-8,985.64

Finding the Fourth Proportional to 19,518.76, 29,268.30 and 8,985.64

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Solution

The fourth proportional to 19,518.76, 29,268.30 and 8,985.64 is: 13,473.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,518.76 : 29,268.30 = 8,985.64 : x
  2. Step 2: Convert to fraction form
    19,518.76/29,268.30 = 8,985.64/x
  3. Step 3: Cross multiply
    19,518.76x = 29,268.30 × 8,985.64
  4. Step 4: Simplify right side
    19,518.76x = 262,994,407.21
  5. Step 5: Solve for x
    x = 262,994,407.21/19,518.76
  6. Step 6: Final answer
    x = 13,473.93

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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.