Home / 7,786.16-10,742.32-4,428.64

Finding the Fourth Proportional to 7,786.16, 10,742.32 and 4,428.64

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Solution

The fourth proportional to 7,786.16, 10,742.32 and 4,428.64 is: 6,110.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.16 : 10,742.32 = 4,428.64 : x
  2. Step 2: Convert to fraction form
    7,786.16/10,742.32 = 4,428.64/x
  3. Step 3: Cross multiply
    7,786.16x = 10,742.32 × 4,428.64
  4. Step 4: Simplify right side
    7,786.16x = 47,573,868.04
  5. Step 5: Solve for x
    x = 47,573,868.04/7,786.16
  6. Step 6: Final answer
    x = 6,110.06

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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.