Home / 11,455.40-17,153.92-7,547.96

Finding the Fourth Proportional to 11,455.40, 17,153.92 and 7,547.96

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Solution

The fourth proportional to 11,455.40, 17,153.92 and 7,547.96 is: 11,302.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,455.40 : 17,153.92 = 7,547.96 : x
  2. Step 2: Convert to fraction form
    11,455.40/17,153.92 = 7,547.96/x
  3. Step 3: Cross multiply
    11,455.40x = 17,153.92 × 7,547.96
  4. Step 4: Simplify right side
    11,455.40x = 129,477,102.00
  5. Step 5: Solve for x
    x = 129,477,102.00/11,455.40
  6. Step 6: Final answer
    x = 11,302.71

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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.