Home / 9,615.59-13,269.60-5,423.84

Finding the Fourth Proportional to 9,615.59, 13,269.60 and 5,423.84

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Solution

The fourth proportional to 9,615.59, 13,269.60 and 5,423.84 is: 7,484.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,615.59 : 13,269.60 = 5,423.84 : x
  2. Step 2: Convert to fraction form
    9,615.59/13,269.60 = 5,423.84/x
  3. Step 3: Cross multiply
    9,615.59x = 13,269.60 × 5,423.84
  4. Step 4: Simplify right side
    9,615.59x = 71,972,120.92
  5. Step 5: Solve for x
    x = 71,972,120.92/9,615.59
  6. Step 6: Final answer
    x = 7,484.94

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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.