Home / 7,947.10-11,920.85-4,435.14

Finding the Fourth Proportional to 7,947.10, 11,920.85 and 4,435.14

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Solution

The fourth proportional to 7,947.10, 11,920.85 and 4,435.14 is: 6,652.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.10 : 11,920.85 = 4,435.14 : x
  2. Step 2: Convert to fraction form
    7,947.10/11,920.85 = 4,435.14/x
  3. Step 3: Cross multiply
    7,947.10x = 11,920.85 × 4,435.14
  4. Step 4: Simplify right side
    7,947.10x = 52,870,638.67
  5. Step 5: Solve for x
    x = 52,870,638.67/7,947.10
  6. Step 6: Final answer
    x = 6,652.82

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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.