Home / 8,965.95-13,450.75-3,123.02

Finding the Fourth Proportional to 8,965.95, 13,450.75 and 3,123.02

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Solution

The fourth proportional to 8,965.95, 13,450.75 and 3,123.02 is: 4,685.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,965.95 : 13,450.75 = 3,123.02 : x
  2. Step 2: Convert to fraction form
    8,965.95/13,450.75 = 3,123.02/x
  3. Step 3: Cross multiply
    8,965.95x = 13,450.75 × 3,123.02
  4. Step 4: Simplify right side
    8,965.95x = 42,006,878.40
  5. Step 5: Solve for x
    x = 42,006,878.40/8,965.95
  6. Step 6: Final answer
    x = 4,685.16

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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.