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Finding the Fourth Proportional to 9,425.87, 13,009.29 and 5,449.28

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Solution

The fourth proportional to 9,425.87, 13,009.29 and 5,449.28 is: 7,520.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,425.87 : 13,009.29 = 5,449.28 : x
  2. Step 2: Convert to fraction form
    9,425.87/13,009.29 = 5,449.28/x
  3. Step 3: Cross multiply
    9,425.87x = 13,009.29 × 5,449.28
  4. Step 4: Simplify right side
    9,425.87x = 70,891,263.81
  5. Step 5: Solve for x
    x = 70,891,263.81/9,425.87
  6. Step 6: Final answer
    x = 7,520.93

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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.