Home / 9,877.87-13,631.66-5,401.54

Finding the Fourth Proportional to 9,877.87, 13,631.66 and 5,401.54

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Solution

The fourth proportional to 9,877.87, 13,631.66 and 5,401.54 is: 7,454.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,877.87 : 13,631.66 = 5,401.54 : x
  2. Step 2: Convert to fraction form
    9,877.87/13,631.66 = 5,401.54/x
  3. Step 3: Cross multiply
    9,877.87x = 13,631.66 × 5,401.54
  4. Step 4: Simplify right side
    9,877.87x = 73,631,956.76
  5. Step 5: Solve for x
    x = 73,631,956.76/9,877.87
  6. Step 6: Final answer
    x = 7,454.23

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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.