Home / 7,914.30-10,921.80-4,377.63

Finding the Fourth Proportional to 7,914.30, 10,921.80 and 4,377.63

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Solution

The fourth proportional to 7,914.30, 10,921.80 and 4,377.63 is: 6,041.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.30 : 10,921.80 = 4,377.63 : x
  2. Step 2: Convert to fraction form
    7,914.30/10,921.80 = 4,377.63/x
  3. Step 3: Cross multiply
    7,914.30x = 10,921.80 × 4,377.63
  4. Step 4: Simplify right side
    7,914.30x = 47,811,599.33
  5. Step 5: Solve for x
    x = 47,811,599.33/7,914.30
  6. Step 6: Final answer
    x = 6,041.17

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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.