Home / 16,907.20-25,358.40-5,221.60

Finding the Fourth Proportional to 16,907.20, 25,358.40 and 5,221.60

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Solution

The fourth proportional to 16,907.20, 25,358.40 and 5,221.60 is: 7,831.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,907.20 : 25,358.40 = 5,221.60 : x
  2. Step 2: Convert to fraction form
    16,907.20/25,358.40 = 5,221.60/x
  3. Step 3: Cross multiply
    16,907.20x = 25,358.40 × 5,221.60
  4. Step 4: Simplify right side
    16,907.20x = 132,411,421.44
  5. Step 5: Solve for x
    x = 132,411,421.44/16,907.20
  6. Step 6: Final answer
    x = 7,831.66

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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.