Home / 7,913.80-10,921.14-4,376.92

Finding the Fourth Proportional to 7,913.80, 10,921.14 and 4,376.92

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Solution

The fourth proportional to 7,913.80, 10,921.14 and 4,376.92 is: 6,040.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.80 : 10,921.14 = 4,376.92 : x
  2. Step 2: Convert to fraction form
    7,913.80/10,921.14 = 4,376.92/x
  3. Step 3: Cross multiply
    7,913.80x = 10,921.14 × 4,376.92
  4. Step 4: Simplify right side
    7,913.80x = 47,800,956.09
  5. Step 5: Solve for x
    x = 47,800,956.09/7,913.80
  6. Step 6: Final answer
    x = 6,040.20

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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.