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Finding the Fourth Proportional to 15,993.40, 23,990.06 and 4,899.94

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Solution

The fourth proportional to 15,993.40, 23,990.06 and 4,899.94 is: 7,349.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,993.40 : 23,990.06 = 4,899.94 : x
  2. Step 2: Convert to fraction form
    15,993.40/23,990.06 = 4,899.94/x
  3. Step 3: Cross multiply
    15,993.40x = 23,990.06 × 4,899.94
  4. Step 4: Simplify right side
    15,993.40x = 117,549,854.60
  5. Step 5: Solve for x
    x = 117,549,854.60/15,993.40
  6. Step 6: Final answer
    x = 7,349.90

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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.