Home / 9,421.16-13,000.32-5,644.26

Finding the Fourth Proportional to 9,421.16, 13,000.32 and 5,644.26

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Solution

The fourth proportional to 9,421.16, 13,000.32 and 5,644.26 is: 7,788.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,421.16 : 13,000.32 = 5,644.26 : x
  2. Step 2: Convert to fraction form
    9,421.16/13,000.32 = 5,644.26/x
  3. Step 3: Cross multiply
    9,421.16x = 13,000.32 × 5,644.26
  4. Step 4: Simplify right side
    9,421.16x = 73,377,186.16
  5. Step 5: Solve for x
    x = 73,377,186.16/9,421.16
  6. Step 6: Final answer
    x = 7,788.56

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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.