Home / 16,688.80-25,033.20-4,376.80

Finding the Fourth Proportional to 16,688.80, 25,033.20 and 4,376.80

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Solution

The fourth proportional to 16,688.80, 25,033.20 and 4,376.80 is: 6,565.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,688.80 : 25,033.20 = 4,376.80 : x
  2. Step 2: Convert to fraction form
    16,688.80/25,033.20 = 4,376.80/x
  3. Step 3: Cross multiply
    16,688.80x = 25,033.20 × 4,376.80
  4. Step 4: Simplify right side
    16,688.80x = 109,565,309.76
  5. Step 5: Solve for x
    x = 109,565,309.76/16,688.80
  6. Step 6: Final answer
    x = 6,565.20

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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.