Home / 9,772.40-13,485.92-5,296.11

Finding the Fourth Proportional to 9,772.40, 13,485.92 and 5,296.11

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Solution

The fourth proportional to 9,772.40, 13,485.92 and 5,296.11 is: 7,308.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,772.40 : 13,485.92 = 5,296.11 : x
  2. Step 2: Convert to fraction form
    9,772.40/13,485.92 = 5,296.11/x
  3. Step 3: Cross multiply
    9,772.40x = 13,485.92 × 5,296.11
  4. Step 4: Simplify right side
    9,772.40x = 71,422,915.77
  5. Step 5: Solve for x
    x = 71,422,915.77/9,772.40
  6. Step 6: Final answer
    x = 7,308.64

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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.