Home / 9,929.39-13,702.55-5,453.14

Finding the Fourth Proportional to 9,929.39, 13,702.55 and 5,453.14

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Solution

The fourth proportional to 9,929.39, 13,702.55 and 5,453.14 is: 7,525.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,929.39 : 13,702.55 = 5,453.14 : x
  2. Step 2: Convert to fraction form
    9,929.39/13,702.55 = 5,453.14/x
  3. Step 3: Cross multiply
    9,929.39x = 13,702.55 × 5,453.14
  4. Step 4: Simplify right side
    9,929.39x = 74,721,827.73
  5. Step 5: Solve for x
    x = 74,721,827.73/9,929.39
  6. Step 6: Final answer
    x = 7,525.32

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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.