Home / 13,355.42-18,431.15-8,051.94

Finding the Fourth Proportional to 13,355.42, 18,431.15 and 8,051.94

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Solution

The fourth proportional to 13,355.42, 18,431.15 and 8,051.94 is: 11,112.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,355.42 : 18,431.15 = 8,051.94 : x
  2. Step 2: Convert to fraction form
    13,355.42/18,431.15 = 8,051.94/x
  3. Step 3: Cross multiply
    13,355.42x = 18,431.15 × 8,051.94
  4. Step 4: Simplify right side
    13,355.42x = 148,406,473.67
  5. Step 5: Solve for x
    x = 148,406,473.67/13,355.42
  6. Step 6: Final answer
    x = 11,112.08

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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.