Home / 15,216.90-22,821.30-4,686.90

Finding the Fourth Proportional to 15,216.90, 22,821.30 and 4,686.90

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Solution

The fourth proportional to 15,216.90, 22,821.30 and 4,686.90 is: 7,029.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,216.90 : 22,821.30 = 4,686.90 : x
  2. Step 2: Convert to fraction form
    15,216.90/22,821.30 = 4,686.90/x
  3. Step 3: Cross multiply
    15,216.90x = 22,821.30 × 4,686.90
  4. Step 4: Simplify right side
    15,216.90x = 106,961,150.97
  5. Step 5: Solve for x
    x = 106,961,150.97/15,216.90
  6. Step 6: Final answer
    x = 7,029.10

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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.