Home / 19,206.90-28,810.30-5,355.90

Finding the Fourth Proportional to 19,206.90, 28,810.30 and 5,355.90

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Solution

The fourth proportional to 19,206.90, 28,810.30 and 5,355.90 is: 8,033.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,206.90 : 28,810.30 = 5,355.90 : x
  2. Step 2: Convert to fraction form
    19,206.90/28,810.30 = 5,355.90/x
  3. Step 3: Cross multiply
    19,206.90x = 28,810.30 × 5,355.90
  4. Step 4: Simplify right side
    19,206.90x = 154,305,085.77
  5. Step 5: Solve for x
    x = 154,305,085.77/19,206.90
  6. Step 6: Final answer
    x = 8,033.84

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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.