Home / 7,715.85-10,647.77-4,528.58

Finding the Fourth Proportional to 7,715.85, 10,647.77 and 4,528.58

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Solution

The fourth proportional to 7,715.85, 10,647.77 and 4,528.58 is: 6,249.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.85 : 10,647.77 = 4,528.58 : x
  2. Step 2: Convert to fraction form
    7,715.85/10,647.77 = 4,528.58/x
  3. Step 3: Cross multiply
    7,715.85x = 10,647.77 × 4,528.58
  4. Step 4: Simplify right side
    7,715.85x = 48,219,202.38
  5. Step 5: Solve for x
    x = 48,219,202.38/7,715.85
  6. Step 6: Final answer
    x = 6,249.37

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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.