Home / 9,160.40-13,747.08-5,211.92

Finding the Fourth Proportional to 9,160.40, 13,747.08 and 5,211.92

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Solution

The fourth proportional to 9,160.40, 13,747.08 and 5,211.92 is: 7,821.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,160.40 : 13,747.08 = 5,211.92 : x
  2. Step 2: Convert to fraction form
    9,160.40/13,747.08 = 5,211.92/x
  3. Step 3: Cross multiply
    9,160.40x = 13,747.08 × 5,211.92
  4. Step 4: Simplify right side
    9,160.40x = 71,648,681.19
  5. Step 5: Solve for x
    x = 71,648,681.19/9,160.40
  6. Step 6: Final answer
    x = 7,821.57

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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.