Home / 9,128.60-13,694.96-2,888.98

Finding the Fourth Proportional to 9,128.60, 13,694.96 and 2,888.98

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Solution

The fourth proportional to 9,128.60, 13,694.96 and 2,888.98 is: 4,334.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.60 : 13,694.96 = 2,888.98 : x
  2. Step 2: Convert to fraction form
    9,128.60/13,694.96 = 2,888.98/x
  3. Step 3: Cross multiply
    9,128.60x = 13,694.96 × 2,888.98
  4. Step 4: Simplify right side
    9,128.60x = 39,564,499.31
  5. Step 5: Solve for x
    x = 39,564,499.31/9,128.60
  6. Step 6: Final answer
    x = 4,334.13

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1.5x scale

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.