Home / 7,138.14-9,848.25-4,623.45

Finding the Fourth Proportional to 7,138.14, 9,848.25 and 4,623.45

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Solution

The fourth proportional to 7,138.14, 9,848.25 and 4,623.45 is: 6,378.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,138.14 : 9,848.25 = 4,623.45 : x
  2. Step 2: Convert to fraction form
    7,138.14/9,848.25 = 4,623.45/x
  3. Step 3: Cross multiply
    7,138.14x = 9,848.25 × 4,623.45
  4. Step 4: Simplify right side
    7,138.14x = 45,532,891.46
  5. Step 5: Solve for x
    x = 45,532,891.46/7,138.14
  6. Step 6: Final answer
    x = 6,378.82

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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.