Home / 7,705.15-10,638.32-5,057.06

Finding the Fourth Proportional to 7,705.15, 10,638.32 and 5,057.06

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Solution

The fourth proportional to 7,705.15, 10,638.32 and 5,057.06 is: 6,982.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,705.15 : 10,638.32 = 5,057.06 : x
  2. Step 2: Convert to fraction form
    7,705.15/10,638.32 = 5,057.06/x
  3. Step 3: Cross multiply
    7,705.15x = 10,638.32 × 5,057.06
  4. Step 4: Simplify right side
    7,705.15x = 53,798,544.06
  5. Step 5: Solve for x
    x = 53,798,544.06/7,705.15
  6. Step 6: Final answer
    x = 6,982.16

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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.