Home / 7,621.96-10,521.48-5,525.68

Finding the Fourth Proportional to 7,621.96, 10,521.48 and 5,525.68

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Solution

The fourth proportional to 7,621.96, 10,521.48 and 5,525.68 is: 7,627.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.96 : 10,521.48 = 5,525.68 : x
  2. Step 2: Convert to fraction form
    7,621.96/10,521.48 = 5,525.68/x
  3. Step 3: Cross multiply
    7,621.96x = 10,521.48 × 5,525.68
  4. Step 4: Simplify right side
    7,621.96x = 58,138,331.61
  5. Step 5: Solve for x
    x = 58,138,331.61/7,621.96
  6. Step 6: Final answer
    x = 7,627.74

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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.