Home / 9,902.07-13,664.40-5,425.67

Finding the Fourth Proportional to 9,902.07, 13,664.40 and 5,425.67

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Solution

The fourth proportional to 9,902.07, 13,664.40 and 5,425.67 is: 7,487.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,902.07 : 13,664.40 = 5,425.67 : x
  2. Step 2: Convert to fraction form
    9,902.07/13,664.40 = 5,425.67/x
  3. Step 3: Cross multiply
    9,902.07x = 13,664.40 × 5,425.67
  4. Step 4: Simplify right side
    9,902.07x = 74,138,456.83
  5. Step 5: Solve for x
    x = 74,138,456.83/9,902.07
  6. Step 6: Final answer
    x = 7,487.17

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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.