Home / 19,907.02-29,867.28-8,812.18

Finding the Fourth Proportional to 19,907.02, 29,867.28 and 8,812.18

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Solution

The fourth proportional to 19,907.02, 29,867.28 and 8,812.18 is: 13,221.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,907.02 : 29,867.28 = 8,812.18 : x
  2. Step 2: Convert to fraction form
    19,907.02/29,867.28 = 8,812.18/x
  3. Step 3: Cross multiply
    19,907.02x = 29,867.28 × 8,812.18
  4. Step 4: Simplify right side
    19,907.02x = 263,195,847.47
  5. Step 5: Solve for x
    x = 263,195,847.47/19,907.02
  6. Step 6: Final answer
    x = 13,221.26

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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.