Home / 16,991.64-25,476.12-7,618.79

Finding the Fourth Proportional to 16,991.64, 25,476.12 and 7,618.79

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Solution

The fourth proportional to 16,991.64, 25,476.12 and 7,618.79 is: 11,423.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,991.64 : 25,476.12 = 7,618.79 : x
  2. Step 2: Convert to fraction form
    16,991.64/25,476.12 = 7,618.79/x
  3. Step 3: Cross multiply
    16,991.64x = 25,476.12 × 7,618.79
  4. Step 4: Simplify right side
    16,991.64x = 194,097,271.99
  5. Step 5: Solve for x
    x = 194,097,271.99/16,991.64
  6. Step 6: Final answer
    x = 11,423.10

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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.