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Finding the Fourth Proportional to 16,990.95, 25,494.78 and 7,637.58

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Solution

The fourth proportional to 16,990.95, 25,494.78 and 7,637.58 is: 11,460.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,990.95 : 25,494.78 = 7,637.58 : x
  2. Step 2: Convert to fraction form
    16,990.95/25,494.78 = 7,637.58/x
  3. Step 3: Cross multiply
    16,990.95x = 25,494.78 × 7,637.58
  4. Step 4: Simplify right side
    16,990.95x = 194,718,421.83
  5. Step 5: Solve for x
    x = 194,718,421.83/16,990.95
  6. Step 6: Final answer
    x = 11,460.13

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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.