Home / 12,528.87-17,290.09-6,863.62

Finding the Fourth Proportional to 12,528.87, 17,290.09 and 6,863.62

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Solution

The fourth proportional to 12,528.87, 17,290.09 and 6,863.62 is: 9,471.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.87 : 17,290.09 = 6,863.62 : x
  2. Step 2: Convert to fraction form
    12,528.87/17,290.09 = 6,863.62/x
  3. Step 3: Cross multiply
    12,528.87x = 17,290.09 × 6,863.62
  4. Step 4: Simplify right side
    12,528.87x = 118,672,607.53
  5. Step 5: Solve for x
    x = 118,672,607.53/12,528.87
  6. Step 6: Final answer
    x = 9,471.93

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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.