Home / 7,780.32-11,639.76-6,011.52

Finding the Fourth Proportional to 7,780.32, 11,639.76 and 6,011.52

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Solution

The fourth proportional to 7,780.32, 11,639.76 and 6,011.52 is: 8,993.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.32 : 11,639.76 = 6,011.52 : x
  2. Step 2: Convert to fraction form
    7,780.32/11,639.76 = 6,011.52/x
  3. Step 3: Cross multiply
    7,780.32x = 11,639.76 × 6,011.52
  4. Step 4: Simplify right side
    7,780.32x = 69,972,650.04
  5. Step 5: Solve for x
    x = 69,972,650.04/7,780.32
  6. Step 6: Final answer
    x = 8,993.54

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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.