Home / 7,875.56-11,815.14-2,612.24

Finding the Fourth Proportional to 7,875.56, 11,815.14 and 2,612.24

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Solution

The fourth proportional to 7,875.56, 11,815.14 and 2,612.24 is: 3,918.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.56 : 11,815.14 = 2,612.24 : x
  2. Step 2: Convert to fraction form
    7,875.56/11,815.14 = 2,612.24/x
  3. Step 3: Cross multiply
    7,875.56x = 11,815.14 × 2,612.24
  4. Step 4: Simplify right side
    7,875.56x = 30,863,981.31
  5. Step 5: Solve for x
    x = 30,863,981.31/7,875.56
  6. Step 6: Final answer
    x = 3,918.96

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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.