Home / 7,622.47-10,517.70-4,479.31

Finding the Fourth Proportional to 7,622.47, 10,517.70 and 4,479.31

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Solution

The fourth proportional to 7,622.47, 10,517.70 and 4,479.31 is: 6,180.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,622.47 : 10,517.70 = 4,479.31 : x
  2. Step 2: Convert to fraction form
    7,622.47/10,517.70 = 4,479.31/x
  3. Step 3: Cross multiply
    7,622.47x = 10,517.70 × 4,479.31
  4. Step 4: Simplify right side
    7,622.47x = 47,112,038.79
  5. Step 5: Solve for x
    x = 47,112,038.79/7,622.47
  6. Step 6: Final answer
    x = 6,180.68

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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.