Home / 7,912.60-10,920.48-4,555.36

Finding the Fourth Proportional to 7,912.60, 10,920.48 and 4,555.36

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Solution

The fourth proportional to 7,912.60, 10,920.48 and 4,555.36 is: 6,287.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912.60 : 10,920.48 = 4,555.36 : x
  2. Step 2: Convert to fraction form
    7,912.60/10,920.48 = 4,555.36/x
  3. Step 3: Cross multiply
    7,912.60x = 10,920.48 × 4,555.36
  4. Step 4: Simplify right side
    7,912.60x = 49,746,717.77
  5. Step 5: Solve for x
    x = 49,746,717.77/7,912.60
  6. Step 6: Final answer
    x = 6,287.03

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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.