Home / 19,419.67-29,124.70-8,325.10

Finding the Fourth Proportional to 19,419.67, 29,124.70 and 8,325.10

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Solution

The fourth proportional to 19,419.67, 29,124.70 and 8,325.10 is: 12,485.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,419.67 : 29,124.70 = 8,325.10 : x
  2. Step 2: Convert to fraction form
    19,419.67/29,124.70 = 8,325.10/x
  3. Step 3: Cross multiply
    19,419.67x = 29,124.70 × 8,325.10
  4. Step 4: Simplify right side
    19,419.67x = 242,466,039.97
  5. Step 5: Solve for x
    x = 242,466,039.97/19,419.67
  6. Step 6: Final answer
    x = 12,485.59

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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.