Home / 7,730.72-11,581.76-6,900.72

Finding the Fourth Proportional to 7,730.72, 11,581.76 and 6,900.72

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Solution

The fourth proportional to 7,730.72, 11,581.76 and 6,900.72 is: 10,338.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,730.72 : 11,581.76 = 6,900.72 : x
  2. Step 2: Convert to fraction form
    7,730.72/11,581.76 = 6,900.72/x
  3. Step 3: Cross multiply
    7,730.72x = 11,581.76 × 6,900.72
  4. Step 4: Simplify right side
    7,730.72x = 79,922,482.87
  5. Step 5: Solve for x
    x = 79,922,482.87/7,730.72
  6. Step 6: Final answer
    x = 10,338.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.