Home / 7,765.04-10,715.40-4,227.92

Finding the Fourth Proportional to 7,765.04, 10,715.40 and 4,227.92

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Solution

The fourth proportional to 7,765.04, 10,715.40 and 4,227.92 is: 5,834.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,765.04 : 10,715.40 = 4,227.92 : x
  2. Step 2: Convert to fraction form
    7,765.04/10,715.40 = 4,227.92/x
  3. Step 3: Cross multiply
    7,765.04x = 10,715.40 × 4,227.92
  4. Step 4: Simplify right side
    7,765.04x = 45,303,853.97
  5. Step 5: Solve for x
    x = 45,303,853.97/7,765.04
  6. Step 6: Final answer
    x = 5,834.34

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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.