Home / 16,987.81-25,487.18-7,124.44

Finding the Fourth Proportional to 16,987.81, 25,487.18 and 7,124.44

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Solution

The fourth proportional to 16,987.81, 25,487.18 and 7,124.44 is: 10,688.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,987.81 : 25,487.18 = 7,124.44 : x
  2. Step 2: Convert to fraction form
    16,987.81/25,487.18 = 7,124.44/x
  3. Step 3: Cross multiply
    16,987.81x = 25,487.18 × 7,124.44
  4. Step 4: Simplify right side
    16,987.81x = 181,581,902.49
  5. Step 5: Solve for x
    x = 181,581,902.49/16,987.81
  6. Step 6: Final answer
    x = 10,688.95

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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.