Home / 7,914.49-10,921.69-4,377.76

Finding the Fourth Proportional to 7,914.49, 10,921.69 and 4,377.76

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Solution

The fourth proportional to 7,914.49, 10,921.69 and 4,377.76 is: 6,041.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.49 : 10,921.69 = 4,377.76 : x
  2. Step 2: Convert to fraction form
    7,914.49/10,921.69 = 4,377.76/x
  3. Step 3: Cross multiply
    7,914.49x = 10,921.69 × 4,377.76
  4. Step 4: Simplify right side
    7,914.49x = 47,812,537.61
  5. Step 5: Solve for x
    x = 47,812,537.61/7,914.49
  6. Step 6: Final answer
    x = 6,041.14

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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.