Home / 16,899.20-25,348.80-5,818.40

Finding the Fourth Proportional to 16,899.20, 25,348.80 and 5,818.40

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Solution

The fourth proportional to 16,899.20, 25,348.80 and 5,818.40 is: 8,727.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,899.20 : 25,348.80 = 5,818.40 : x
  2. Step 2: Convert to fraction form
    16,899.20/25,348.80 = 5,818.40/x
  3. Step 3: Cross multiply
    16,899.20x = 25,348.80 × 5,818.40
  4. Step 4: Simplify right side
    16,899.20x = 147,489,457.92
  5. Step 5: Solve for x
    x = 147,489,457.92/16,899.20
  6. Step 6: Final answer
    x = 8,727.60

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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.