Home / 7,765.23-10,715.69-4,228.47

Finding the Fourth Proportional to 7,765.23, 10,715.69 and 4,228.47

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Solution

The fourth proportional to 7,765.23, 10,715.69 and 4,228.47 is: 5,835.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,765.23 : 10,715.69 = 4,228.47 : x
  2. Step 2: Convert to fraction form
    7,765.23/10,715.69 = 4,228.47/x
  3. Step 3: Cross multiply
    7,765.23x = 10,715.69 × 4,228.47
  4. Step 4: Simplify right side
    7,765.23x = 45,310,952.55
  5. Step 5: Solve for x
    x = 45,310,952.55/7,765.23
  6. Step 6: Final answer
    x = 5,835.11

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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.