Home / 11,525.62-15,905.64-6,490.02

Finding the Fourth Proportional to 11,525.62, 15,905.64 and 6,490.02

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Solution

The fourth proportional to 11,525.62, 15,905.64 and 6,490.02 is: 8,956.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,525.62 : 15,905.64 = 6,490.02 : x
  2. Step 2: Convert to fraction form
    11,525.62/15,905.64 = 6,490.02/x
  3. Step 3: Cross multiply
    11,525.62x = 15,905.64 × 6,490.02
  4. Step 4: Simplify right side
    11,525.62x = 103,227,987.44
  5. Step 5: Solve for x
    x = 103,227,987.44/11,525.62
  6. Step 6: Final answer
    x = 8,956.40

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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.