Home / 9,987.64-14,977.78-3,322.92

Finding the Fourth Proportional to 9,987.64, 14,977.78 and 3,322.92

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Solution

The fourth proportional to 9,987.64, 14,977.78 and 3,322.92 is: 4,983.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,987.64 : 14,977.78 = 3,322.92 : x
  2. Step 2: Convert to fraction form
    9,987.64/14,977.78 = 3,322.92/x
  3. Step 3: Cross multiply
    9,987.64x = 14,977.78 × 3,322.92
  4. Step 4: Simplify right side
    9,987.64x = 49,769,964.72
  5. Step 5: Solve for x
    x = 49,769,964.72/9,987.64
  6. Step 6: Final answer
    x = 4,983.16

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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.